221363980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{233}}^1\times {\mathrm{709}}^1$

素因数の和:1018

約数の個数: 48

約数和(自身を含む): 474495840

約数和(自身を除く): 253131860

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 233, 268, 335, 466, 670, 709, 932, 1165, 1340, 1418, 2330, 2836, 3545, 4660, 7090, 14180, 15611, 31222, 47503, 62444, 78055, 95006, 156110, 165197, 190012, 237515, 312220, 330394, 475030, 660788, 825985, 950060, 1651970, 3303940, 11068199, 22136398, 44272796, 55340995, 110681990, 221363980]

約数ペア:

[(1, 221363980), (2, 110681990), (4, 55340995), (5, 44272796), (10, 22136398), (20, 11068199), (67, 3303940), (134, 1651970), (233, 950060), (268, 825985), (335, 660788), (466, 475030), (670, 330394), (709, 312220), (932, 237515), (1165, 190012), (1340, 165197), (1418, 156110), (2330, 95006), (2836, 78055), (3545, 62444), (4660, 47503), (7090, 31222), (14180, 15611)]