28306740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{557}}^1$

素因数の和:598

約数の個数: 144

約数和(自身を含む): 99743616

約数和(自身を除く): 71436876

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, 557, 605, 660, 726, 770, 847, 924, 1114, 1155, 1210, 1452, 1540, 1671, 1694, 1815, 2228, 2310, 2420, 2541, 2785, 3342, 3388, 3630, 3899, 4235, 4620, 5082, 5570, 6127, 6684, 7260, 7798, 8355, 8470, 10164, 11140, 11697, 12254, 12705, 15596, 16710, 16940, 18381, 19495, 23394, 24508, 25410, 30635, 33420, 36762, 38990, 42889, 46788, 50820, 58485, 61270, 67397, 73524, 77980, 85778, 91905, 116970, 122540, 128667, 134794, 171556, 183810, 202191, 214445, 233940, 257334, 269588, 336985, 367620, 404382, 428890, 471779, 514668, 643335, 673970, 808764, 857780, 943558, 1010955, 1286670, 1347940, 1415337, 1887116, 2021910, 2358895, 2573340, 2830674, 4043820, 4717790, 5661348, 7076685, 9435580, 14153370, 28306740]

約数ペア:

[(1, 28306740), (2, 14153370), (3, 9435580), (4, 7076685), (5, 5661348), (6, 4717790), (7, 4043820), (10, 2830674), (11, 2573340), (12, 2358895), (14, 2021910), (15, 1887116), (20, 1415337), (21, 1347940), (22, 1286670), (28, 1010955), (30, 943558), (33, 857780), (35, 808764), (42, 673970), (44, 643335), (55, 514668), (60, 471779), (66, 428890), (70, 404382), (77, 367620), (84, 336985), (105, 269588), (110, 257334), (121, 233940), (132, 214445), (140, 202191), (154, 183810), (165, 171556), (210, 134794), (220, 128667), (231, 122540), (242, 116970), (308, 91905), (330, 85778), (363, 77980), (385, 73524), (420, 67397), (462, 61270), (484, 58485), (557, 50820), (605, 46788), (660, 42889), (726, 38990), (770, 36762), (847, 33420), (924, 30635), (1114, 25410), (1155, 24508), (1210, 23394), (1452, 19495), (1540, 18381), (1671, 16940), (1694, 16710), (1815, 15596), (2228, 12705), (2310, 12254), (2420, 11697), (2541, 11140), (2785, 10164), (3342, 8470), (3388, 8355), (3630, 7798), (3899, 7260), (4235, 6684), (4620, 6127), (5082, 5570)]