291250760

素因数分解:

$2^3\times 5^1\times {\mathrm{2039}}^1\times {\mathrm{3571}}^1$

素因数の和:5621

約数の個数: 32

約数和(自身を含む): 655819200

約数和(自身を除く): 364568440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2039, 3571, 4078, 7142, 8156, 10195, 14284, 16312, 17855, 20390, 28568, 35710, 40780, 71420, 81560, 142840, 7281269, 14562538, 29125076, 36406345, 58250152, 72812690, 145625380, 291250760]

約数ペア:

[(1, 291250760), (2, 145625380), (4, 72812690), (5, 58250152), (8, 36406345), (10, 29125076), (20, 14562538), (40, 7281269), (2039, 142840), (3571, 81560), (4078, 71420), (7142, 40780), (8156, 35710), (10195, 28568), (14284, 20390), (16312, 17855)]