215569970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:888

約数の個数: 96

約数和(自身を含む): 503774208

約数和(自身を除く): 288204238

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 31, 35, 55, 62, 70, 77, 110, 121, 154, 155, 217, 242, 310, 341, 385, 434, 605, 682, 770, 821, 847, 1085, 1210, 1642, 1694, 1705, 2170, 2387, 3410, 3751, 4105, 4235, 4774, 5747, 7502, 8210, 8470, 9031, 11494, 11935, 18062, 18755, 23870, 25451, 26257, 28735, 37510, 45155, 50902, 52514, 57470, 63217, 90310, 99341, 126434, 127255, 131285, 178157, 198682, 254510, 262570, 279961, 316085, 356314, 496705, 559922, 632170, 695387, 890785, 993410, 1390774, 1399805, 1781570, 1959727, 2799610, 3079571, 3476935, 3919454, 6159142, 6953870, 9798635, 15397855, 19597270, 21556997, 30795710, 43113994, 107784985, 215569970]

約数ペア:

[(1, 215569970), (2, 107784985), (5, 43113994), (7, 30795710), (10, 21556997), (11, 19597270), (14, 15397855), (22, 9798635), (31, 6953870), (35, 6159142), (55, 3919454), (62, 3476935), (70, 3079571), (77, 2799610), (110, 1959727), (121, 1781570), (154, 1399805), (155, 1390774), (217, 993410), (242, 890785), (310, 695387), (341, 632170), (385, 559922), (434, 496705), (605, 356314), (682, 316085), (770, 279961), (821, 262570), (847, 254510), (1085, 198682), (1210, 178157), (1642, 131285), (1694, 127255), (1705, 126434), (2170, 99341), (2387, 90310), (3410, 63217), (3751, 57470), (4105, 52514), (4235, 50902), (4774, 45155), (5747, 37510), (7502, 28735), (8210, 26257), (8470, 25451), (9031, 23870), (11494, 18755), (11935, 18062)]