123153980

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1\times {\mathrm{521}}^1$

素因数の和:806

約数の個数: 48

約数和(自身を含む): 265192704

約数和(自身を除く): 142038724

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 223, 265, 446, 521, 530, 892, 1042, 1060, 1115, 2084, 2230, 2605, 4460, 5210, 10420, 11819, 23638, 27613, 47276, 55226, 59095, 110452, 116183, 118190, 138065, 232366, 236380, 276130, 464732, 552260, 580915, 1161830, 2323660, 6157699, 12315398, 24630796, 30788495, 61576990, 123153980]

約数ペア:

[(1, 123153980), (2, 61576990), (4, 30788495), (5, 24630796), (10, 12315398), (20, 6157699), (53, 2323660), (106, 1161830), (212, 580915), (223, 552260), (265, 464732), (446, 276130), (521, 236380), (530, 232366), (892, 138065), (1042, 118190), (1060, 116183), (1115, 110452), (2084, 59095), (2230, 55226), (2605, 47276), (4460, 27613), (5210, 23638), (10420, 11819)]