28133980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11821}}^1$

素因数の和:11854

約数の個数: 48

約数和(自身を含む): 71499456

約数和(自身を除く): 43365476

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 11821, 23642, 47284, 59105, 82747, 118210, 165494, 200957, 236420, 330988, 401914, 413735, 803828, 827470, 1004785, 1406699, 1654940, 2009570, 2813398, 4019140, 5626796, 7033495, 14066990, 28133980]

約数ペア:

[(1, 28133980), (2, 14066990), (4, 7033495), (5, 5626796), (7, 4019140), (10, 2813398), (14, 2009570), (17, 1654940), (20, 1406699), (28, 1004785), (34, 827470), (35, 803828), (68, 413735), (70, 401914), (85, 330988), (119, 236420), (140, 200957), (170, 165494), (238, 118210), (340, 82747), (476, 59105), (595, 47284), (1190, 23642), (2380, 11821)]