81348540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:396

約数の個数: 192

約数和(自身を含む): 287207424

約数和(自身を除く): 205858884

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 47, 52, 60, 65, 70, 78, 84, 91, 94, 105, 130, 140, 141, 156, 182, 188, 195, 210, 235, 260, 273, 282, 317, 329, 364, 390, 420, 455, 470, 546, 564, 611, 634, 658, 705, 780, 910, 940, 951, 987, 1092, 1222, 1268, 1316, 1365, 1410, 1585, 1645, 1820, 1833, 1902, 1974, 2219, 2444, 2730, 2820, 3055, 3170, 3290, 3666, 3804, 3948, 4121, 4277, 4438, 4755, 4935, 5460, 6110, 6340, 6580, 6657, 7332, 8242, 8554, 8876, 9165, 9510, 9870, 11095, 12220, 12363, 12831, 13314, 14899, 16484, 17108, 18330, 19020, 19740, 20605, 21385, 22190, 24726, 25662, 26628, 28847, 29798, 33285, 36660, 41210, 42770, 44380, 44697, 49452, 51324, 57694, 59596, 61815, 64155, 66570, 74495, 82420, 85540, 86541, 89394, 104293, 115388, 123630, 128310, 133140, 144235, 148990, 173082, 178788, 193687, 208586, 223485, 247260, 256620, 288470, 297980, 312879, 346164, 387374, 417172, 432705, 446970, 521465, 576940, 581061, 625758, 774748, 865410, 893940, 968435, 1042930, 1162122, 1251516, 1355809, 1564395, 1730820, 1936870, 2085860, 2324244, 2711618, 2905305, 3128790, 3873740, 4067427, 5423236, 5810610, 6257580, 6779045, 8134854, 11621220, 13558090, 16269708, 20337135, 27116180, 40674270, 81348540]

約数ペア:

[(1, 81348540), (2, 40674270), (3, 27116180), (4, 20337135), (5, 16269708), (6, 13558090), (7, 11621220), (10, 8134854), (12, 6779045), (13, 6257580), (14, 5810610), (15, 5423236), (20, 4067427), (21, 3873740), (26, 3128790), (28, 2905305), (30, 2711618), (35, 2324244), (39, 2085860), (42, 1936870), (47, 1730820), (52, 1564395), (60, 1355809), (65, 1251516), (70, 1162122), (78, 1042930), (84, 968435), (91, 893940), (94, 865410), (105, 774748), (130, 625758), (140, 581061), (141, 576940), (156, 521465), (182, 446970), (188, 432705), (195, 417172), (210, 387374), (235, 346164), (260, 312879), (273, 297980), (282, 288470), (317, 256620), (329, 247260), (364, 223485), (390, 208586), (420, 193687), (455, 178788), (470, 173082), (546, 148990), (564, 144235), (611, 133140), (634, 128310), (658, 123630), (705, 115388), (780, 104293), (910, 89394), (940, 86541), (951, 85540), (987, 82420), (1092, 74495), (1222, 66570), (1268, 64155), (1316, 61815), (1365, 59596), (1410, 57694), (1585, 51324), (1645, 49452), (1820, 44697), (1833, 44380), (1902, 42770), (1974, 41210), (2219, 36660), (2444, 33285), (2730, 29798), (2820, 28847), (3055, 26628), (3170, 25662), (3290, 24726), (3666, 22190), (3804, 21385), (3948, 20605), (4121, 19740), (4277, 19020), (4438, 18330), (4755, 17108), (4935, 16484), (5460, 14899), (6110, 13314), (6340, 12831), (6580, 12363), (6657, 12220), (7332, 11095), (8242, 9870), (8554, 9510), (8876, 9165)]