128091380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{5039}}^1$

素因数の和:5120

約数の個数: 48

約数和(自身を含む): 284497920

約数和(自身を除く): 156406540

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 820, 1271, 2542, 5039, 5084, 6355, 10078, 12710, 20156, 25195, 25420, 50390, 100780, 156209, 206599, 312418, 413198, 624836, 781045, 826396, 1032995, 1562090, 2065990, 3124180, 4131980, 6404569, 12809138, 25618276, 32022845, 64045690, 128091380]

約数ペア:

[(1, 128091380), (2, 64045690), (4, 32022845), (5, 25618276), (10, 12809138), (20, 6404569), (31, 4131980), (41, 3124180), (62, 2065990), (82, 1562090), (124, 1032995), (155, 826396), (164, 781045), (205, 624836), (310, 413198), (410, 312418), (620, 206599), (820, 156209), (1271, 100780), (2542, 50390), (5039, 25420), (5084, 25195), (6355, 20156), (10078, 12710)]