177887320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20123}}^1$

素因数の和:20164

約数の個数: 64

約数和(自身を含む): 456412320

約数和(自身を除く): 278525000

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 4420, 8840, 20123, 40246, 80492, 100615, 160984, 201230, 261599, 342091, 402460, 523198, 684182, 804920, 1046396, 1307995, 1368364, 1710455, 2092792, 2615990, 2736728, 3420910, 4447183, 5231980, 6841820, 8894366, 10463960, 13683640, 17788732, 22235915, 35577464, 44471830, 88943660, 177887320]

約数ペア:

[(1, 177887320), (2, 88943660), (4, 44471830), (5, 35577464), (8, 22235915), (10, 17788732), (13, 13683640), (17, 10463960), (20, 8894366), (26, 6841820), (34, 5231980), (40, 4447183), (52, 3420910), (65, 2736728), (68, 2615990), (85, 2092792), (104, 1710455), (130, 1368364), (136, 1307995), (170, 1046396), (221, 804920), (260, 684182), (340, 523198), (442, 402460), (520, 342091), (680, 261599), (884, 201230), (1105, 160984), (1768, 100615), (2210, 80492), (4420, 40246), (8840, 20123)]