1649270980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{40763}}^1$

素因数の和:40813

約数の個数: 72

約数和(自身を含む): 4204888128

約数和(自身を除く): 2555617148

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 289, 340, 476, 578, 595, 1156, 1190, 1445, 2023, 2380, 2890, 4046, 5780, 8092, 10115, 20230, 40460, 40763, 81526, 163052, 203815, 285341, 407630, 570682, 692971, 815260, 1141364, 1385942, 1426705, 2771884, 2853410, 3464855, 4850797, 5706820, 6929710, 9701594, 11780507, 13859420, 19403188, 23561014, 24253985, 47122028, 48507970, 58902535, 82463549, 97015940, 117805070, 164927098, 235610140, 329854196, 412317745, 824635490, 1649270980]

約数ペア:

[(1, 1649270980), (2, 824635490), (4, 412317745), (5, 329854196), (7, 235610140), (10, 164927098), (14, 117805070), (17, 97015940), (20, 82463549), (28, 58902535), (34, 48507970), (35, 47122028), (68, 24253985), (70, 23561014), (85, 19403188), (119, 13859420), (140, 11780507), (170, 9701594), (238, 6929710), (289, 5706820), (340, 4850797), (476, 3464855), (578, 2853410), (595, 2771884), (1156, 1426705), (1190, 1385942), (1445, 1141364), (2023, 815260), (2380, 692971), (2890, 570682), (4046, 407630), (5780, 285341), (8092, 203815), (10115, 163052), (20230, 81526), (40460, 40763)]