81159540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1597}}^1$

素因数の和:1638

約数の個数: 144

約数和(自身を含む): 285645696

約数和(自身を除く): 204486156

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 121, 132, 140, 154, 165, 210, 220, 231, 242, 308, 330, 363, 385, 420, 462, 484, 605, 660, 726, 770, 847, 924, 1155, 1210, 1452, 1540, 1597, 1694, 1815, 2310, 2420, 2541, 3194, 3388, 3630, 4235, 4620, 4791, 5082, 6388, 7260, 7985, 8470, 9582, 10164, 11179, 12705, 15970, 16940, 17567, 19164, 22358, 23955, 25410, 31940, 33537, 35134, 44716, 47910, 50820, 52701, 55895, 67074, 70268, 87835, 95820, 105402, 111790, 122969, 134148, 167685, 175670, 193237, 210804, 223580, 245938, 263505, 335370, 351340, 368907, 386474, 491876, 527010, 579711, 614845, 670740, 737814, 772948, 966185, 1054020, 1159422, 1229690, 1352659, 1475628, 1844535, 1932370, 2318844, 2459380, 2705318, 2898555, 3689070, 3864740, 4057977, 5410636, 5797110, 6763295, 7378140, 8115954, 11594220, 13526590, 16231908, 20289885, 27053180, 40579770, 81159540]

約数ペア:

[(1, 81159540), (2, 40579770), (3, 27053180), (4, 20289885), (5, 16231908), (6, 13526590), (7, 11594220), (10, 8115954), (11, 7378140), (12, 6763295), (14, 5797110), (15, 5410636), (20, 4057977), (21, 3864740), (22, 3689070), (28, 2898555), (30, 2705318), (33, 2459380), (35, 2318844), (42, 1932370), (44, 1844535), (55, 1475628), (60, 1352659), (66, 1229690), (70, 1159422), (77, 1054020), (84, 966185), (105, 772948), (110, 737814), (121, 670740), (132, 614845), (140, 579711), (154, 527010), (165, 491876), (210, 386474), (220, 368907), (231, 351340), (242, 335370), (308, 263505), (330, 245938), (363, 223580), (385, 210804), (420, 193237), (462, 175670), (484, 167685), (605, 134148), (660, 122969), (726, 111790), (770, 105402), (847, 95820), (924, 87835), (1155, 70268), (1210, 67074), (1452, 55895), (1540, 52701), (1597, 50820), (1694, 47910), (1815, 44716), (2310, 35134), (2420, 33537), (2541, 31940), (3194, 25410), (3388, 23955), (3630, 22358), (4235, 19164), (4620, 17567), (4791, 16940), (5082, 15970), (6388, 12705), (7260, 11179), (7985, 10164), (8470, 9582)]