51267320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5189}}^1$

素因数の和:5232

約数の個数: 64

約数和(自身を含む): 130788000

約数和(自身を除く): 79520680

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 5189, 9880, 10378, 20756, 25945, 41512, 51890, 67457, 98591, 103780, 134914, 197182, 207560, 269828, 337285, 394364, 492955, 539656, 674570, 788728, 985910, 1281683, 1349140, 1971820, 2563366, 2698280, 3943640, 5126732, 6408415, 10253464, 12816830, 25633660, 51267320]

約数ペア:

[(1, 51267320), (2, 25633660), (4, 12816830), (5, 10253464), (8, 6408415), (10, 5126732), (13, 3943640), (19, 2698280), (20, 2563366), (26, 1971820), (38, 1349140), (40, 1281683), (52, 985910), (65, 788728), (76, 674570), (95, 539656), (104, 492955), (130, 394364), (152, 337285), (190, 269828), (247, 207560), (260, 197182), (380, 134914), (494, 103780), (520, 98591), (760, 67457), (988, 51890), (1235, 41512), (1976, 25945), (2470, 20756), (4940, 10378), (5189, 9880)]