87281820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:265

約数の個数: 192

約数和(自身を含む): 293529600

約数和(自身を除く): 206247780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 47, 54, 57, 60, 76, 90, 94, 95, 108, 114, 135, 141, 171, 180, 181, 188, 190, 228, 235, 270, 282, 285, 342, 362, 380, 423, 470, 513, 540, 543, 564, 570, 684, 705, 724, 846, 855, 893, 905, 940, 1026, 1086, 1140, 1269, 1410, 1629, 1692, 1710, 1786, 1810, 2052, 2115, 2172, 2538, 2565, 2679, 2715, 2820, 3258, 3420, 3439, 3572, 3620, 4230, 4465, 4887, 5076, 5130, 5358, 5430, 6345, 6516, 6878, 8037, 8145, 8460, 8507, 8930, 9774, 10260, 10317, 10716, 10860, 12690, 13395, 13756, 16074, 16290, 17014, 17195, 17860, 19548, 20634, 24111, 24435, 25380, 25521, 26790, 30951, 32148, 32580, 34028, 34390, 40185, 41268, 42535, 48222, 48870, 51042, 51585, 53580, 61902, 68780, 76563, 80370, 85070, 92853, 96444, 97740, 102084, 103170, 120555, 123804, 127605, 153126, 154755, 160740, 161633, 170140, 185706, 206340, 229689, 241110, 255210, 306252, 309510, 323266, 371412, 382815, 459378, 464265, 482220, 484899, 510420, 619020, 646532, 765630, 808165, 918756, 928530, 969798, 1148445, 1454697, 1531260, 1616330, 1857060, 1939596, 2296890, 2424495, 2909394, 3232660, 4364091, 4593780, 4848990, 5818788, 7273485, 8728182, 9697980, 14546970, 17456364, 21820455, 29093940, 43640910, 87281820]

約数ペア:

[(1, 87281820), (2, 43640910), (3, 29093940), (4, 21820455), (5, 17456364), (6, 14546970), (9, 9697980), (10, 8728182), (12, 7273485), (15, 5818788), (18, 4848990), (19, 4593780), (20, 4364091), (27, 3232660), (30, 2909394), (36, 2424495), (38, 2296890), (45, 1939596), (47, 1857060), (54, 1616330), (57, 1531260), (60, 1454697), (76, 1148445), (90, 969798), (94, 928530), (95, 918756), (108, 808165), (114, 765630), (135, 646532), (141, 619020), (171, 510420), (180, 484899), (181, 482220), (188, 464265), (190, 459378), (228, 382815), (235, 371412), (270, 323266), (282, 309510), (285, 306252), (342, 255210), (362, 241110), (380, 229689), (423, 206340), (470, 185706), (513, 170140), (540, 161633), (543, 160740), (564, 154755), (570, 153126), (684, 127605), (705, 123804), (724, 120555), (846, 103170), (855, 102084), (893, 97740), (905, 96444), (940, 92853), (1026, 85070), (1086, 80370), (1140, 76563), (1269, 68780), (1410, 61902), (1629, 53580), (1692, 51585), (1710, 51042), (1786, 48870), (1810, 48222), (2052, 42535), (2115, 41268), (2172, 40185), (2538, 34390), (2565, 34028), (2679, 32580), (2715, 32148), (2820, 30951), (3258, 26790), (3420, 25521), (3439, 25380), (3572, 24435), (3620, 24111), (4230, 20634), (4465, 19548), (4887, 17860), (5076, 17195), (5130, 17014), (5358, 16290), (5430, 16074), (6345, 13756), (6516, 13395), (6878, 12690), (8037, 10860), (8145, 10716), (8460, 10317), (8507, 10260), (8930, 9774)]