78994820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{1237}}^1$

素因数の和:1380

約数の個数: 48

約数和(自身を含む): 173042688

約数和(自身を除く): 94047868

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 103, 124, 155, 206, 310, 412, 515, 620, 1030, 1237, 2060, 2474, 3193, 4948, 6185, 6386, 12370, 12772, 15965, 24740, 31930, 38347, 63860, 76694, 127411, 153388, 191735, 254822, 383470, 509644, 637055, 766940, 1274110, 2548220, 3949741, 7899482, 15798964, 19748705, 39497410, 78994820]

約数ペア:

[(1, 78994820), (2, 39497410), (4, 19748705), (5, 15798964), (10, 7899482), (20, 3949741), (31, 2548220), (62, 1274110), (103, 766940), (124, 637055), (155, 509644), (206, 383470), (310, 254822), (412, 191735), (515, 153388), (620, 127411), (1030, 76694), (1237, 63860), (2060, 38347), (2474, 31930), (3193, 24740), (4948, 15965), (6185, 12772), (6386, 12370)]