81495180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:110

約数の個数: 288

約数和(自身を含む): 295142400

約数和(自身を除く): 213647220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 27, 30, 36, 38, 39, 45, 47, 52, 54, 57, 60, 65, 76, 78, 90, 94, 95, 108, 114, 117, 130, 135, 141, 156, 169, 171, 180, 188, 190, 195, 228, 234, 235, 247, 260, 270, 282, 285, 338, 342, 351, 380, 390, 423, 468, 470, 494, 507, 513, 540, 564, 570, 585, 611, 676, 684, 702, 705, 741, 780, 845, 846, 855, 893, 940, 988, 1014, 1026, 1140, 1170, 1222, 1235, 1269, 1404, 1410, 1482, 1521, 1690, 1692, 1710, 1755, 1786, 1833, 2028, 2052, 2115, 2223, 2340, 2444, 2470, 2535, 2538, 2565, 2679, 2820, 2964, 3042, 3055, 3211, 3380, 3420, 3510, 3572, 3666, 3705, 4230, 4446, 4465, 4563, 4940, 5070, 5076, 5130, 5358, 5499, 6084, 6110, 6345, 6422, 6669, 7020, 7332, 7410, 7605, 7943, 8037, 8460, 8892, 8930, 9126, 9165, 9633, 10140, 10260, 10716, 10998, 11115, 11609, 12220, 12690, 12844, 13338, 13395, 14820, 15210, 15886, 16055, 16074, 16497, 17860, 18252, 18330, 19266, 21996, 22230, 22815, 23218, 23829, 24111, 25380, 26676, 26790, 27495, 28899, 30420, 31772, 32110, 32148, 32994, 33345, 34827, 36660, 38532, 39715, 40185, 44460, 45630, 46436, 47658, 48165, 48222, 53580, 54990, 57798, 58045, 64220, 65988, 66690, 69654, 71487, 79430, 80370, 82485, 86697, 91260, 95316, 96330, 96444, 104481, 109980, 115596, 116090, 119145, 120555, 133380, 139308, 142974, 144495, 150917, 158860, 160740, 164970, 173394, 174135, 192660, 208962, 214461, 232180, 238290, 241110, 285948, 288990, 301834, 313443, 329940, 346788, 348270, 357435, 417924, 428922, 433485, 452751, 476580, 482220, 522405, 577980, 603668, 626886, 696540, 714870, 754585, 857844, 866970, 905502, 1044810, 1072305, 1253772, 1358253, 1429740, 1509170, 1567215, 1733940, 1811004, 2089620, 2144610, 2263755, 2716506, 3018340, 3134430, 4074759, 4289220, 4527510, 5433012, 6268860, 6791265, 8149518, 9055020, 13582530, 16299036, 20373795, 27165060, 40747590, 81495180]

約数ペア:

[(1, 81495180), (2, 40747590), (3, 27165060), (4, 20373795), (5, 16299036), (6, 13582530), (9, 9055020), (10, 8149518), (12, 6791265), (13, 6268860), (15, 5433012), (18, 4527510), (19, 4289220), (20, 4074759), (26, 3134430), (27, 3018340), (30, 2716506), (36, 2263755), (38, 2144610), (39, 2089620), (45, 1811004), (47, 1733940), (52, 1567215), (54, 1509170), (57, 1429740), (60, 1358253), (65, 1253772), (76, 1072305), (78, 1044810), (90, 905502), (94, 866970), (95, 857844), (108, 754585), (114, 714870), (117, 696540), (130, 626886), (135, 603668), (141, 577980), (156, 522405), (169, 482220), (171, 476580), (180, 452751), (188, 433485), (190, 428922), (195, 417924), (228, 357435), (234, 348270), (235, 346788), (247, 329940), (260, 313443), (270, 301834), (282, 288990), (285, 285948), (338, 241110), (342, 238290), (351, 232180), (380, 214461), (390, 208962), (423, 192660), (468, 174135), (470, 173394), (494, 164970), (507, 160740), (513, 158860), (540, 150917), (564, 144495), (570, 142974), (585, 139308), (611, 133380), (676, 120555), (684, 119145), (702, 116090), (705, 115596), (741, 109980), (780, 104481), (845, 96444), (846, 96330), (855, 95316), (893, 91260), (940, 86697), (988, 82485), (1014, 80370), (1026, 79430), (1140, 71487), (1170, 69654), (1222, 66690), (1235, 65988), (1269, 64220), (1404, 58045), (1410, 57798), (1482, 54990), (1521, 53580), (1690, 48222), (1692, 48165), (1710, 47658), (1755, 46436), (1786, 45630), (1833, 44460), (2028, 40185), (2052, 39715), (2115, 38532), (2223, 36660), (2340, 34827), (2444, 33345), (2470, 32994), (2535, 32148), (2538, 32110), (2565, 31772), (2679, 30420), (2820, 28899), (2964, 27495), (3042, 26790), (3055, 26676), (3211, 25380), (3380, 24111), (3420, 23829), (3510, 23218), (3572, 22815), (3666, 22230), (3705, 21996), (4230, 19266), (4446, 18330), (4465, 18252), (4563, 17860), (4940, 16497), (5070, 16074), (5076, 16055), (5130, 15886), (5358, 15210), (5499, 14820), (6084, 13395), (6110, 13338), (6345, 12844), (6422, 12690), (6669, 12220), (7020, 11609), (7332, 11115), (7410, 10998), (7605, 10716), (7943, 10260), (8037, 10140), (8460, 9633), (8892, 9165), (8930, 9126)]