9970220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1237}}^1$

素因数の和:1290

約数の個数: 48

約数和(自身を含む): 23294208

約数和(自身を除く): 13323988

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1237, 1612, 2015, 2474, 4030, 4948, 6185, 8060, 12370, 16081, 24740, 32162, 38347, 64324, 76694, 80405, 153388, 160810, 191735, 321620, 383470, 498511, 766940, 997022, 1994044, 2492555, 4985110, 9970220]

約数ペア:

[(1, 9970220), (2, 4985110), (4, 2492555), (5, 1994044), (10, 997022), (13, 766940), (20, 498511), (26, 383470), (31, 321620), (52, 191735), (62, 160810), (65, 153388), (124, 80405), (130, 76694), (155, 64324), (260, 38347), (310, 32162), (403, 24740), (620, 16081), (806, 12370), (1237, 8060), (1612, 6185), (2015, 4948), (2474, 4030)]