640311828

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{4104563}}^1$

素因数の和:4104583

約数の個数: 24

約数和(自身を含む): 1608989088

約数和(自身を除く): 968677260

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 4104563, 8209126, 12313689, 16418252, 24627378, 49254756, 53359319, 106718638, 160077957, 213437276, 320155914, 640311828]

約数ペア:

[(1, 640311828), (2, 320155914), (3, 213437276), (4, 160077957), (6, 106718638), (12, 53359319), (13, 49254756), (26, 24627378), (39, 16418252), (52, 12313689), (78, 8209126), (156, 4104563)]