633966580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{27397}}^1$

素因数の和:27508

約数の個数: 48

約数和(自身を含む): 1449902160

約数和(自身を除く): 815935580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1157, 1780, 2314, 4628, 5785, 11570, 23140, 27397, 54794, 109588, 136985, 273970, 356161, 547940, 712322, 1424644, 1780805, 2438333, 3561610, 4876666, 7123220, 9753332, 12191665, 24383330, 31698329, 48766660, 63396658, 126793316, 158491645, 316983290, 633966580]

約数ペア:

[(1, 633966580), (2, 316983290), (4, 158491645), (5, 126793316), (10, 63396658), (13, 48766660), (20, 31698329), (26, 24383330), (52, 12191665), (65, 9753332), (89, 7123220), (130, 4876666), (178, 3561610), (260, 2438333), (356, 1780805), (445, 1424644), (890, 712322), (1157, 547940), (1780, 356161), (2314, 273970), (4628, 136985), (5785, 109588), (11570, 54794), (23140, 27397)]