207973420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{3769}}^1$

素因数の和:3898

約数の個数: 48

約数和(自身を含む): 456019200

約数和(自身を除く): 248045780

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 89, 124, 155, 178, 310, 356, 445, 620, 890, 1780, 2759, 3769, 5518, 7538, 11036, 13795, 15076, 18845, 27590, 37690, 55180, 75380, 116839, 233678, 335441, 467356, 584195, 670882, 1168390, 1341764, 1677205, 2336780, 3354410, 6708820, 10398671, 20797342, 41594684, 51993355, 103986710, 207973420]

約数ペア:

[(1, 207973420), (2, 103986710), (4, 51993355), (5, 41594684), (10, 20797342), (20, 10398671), (31, 6708820), (62, 3354410), (89, 2336780), (124, 1677205), (155, 1341764), (178, 1168390), (310, 670882), (356, 584195), (445, 467356), (620, 335441), (890, 233678), (1780, 116839), (2759, 75380), (3769, 55180), (5518, 37690), (7538, 27590), (11036, 18845), (13795, 15076)]