90895240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{601}}^1$

素因数の和:830

約数の個数: 64

約数和(自身を含む): 216720000

約数和(自身を除く): 125824760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 199, 380, 398, 601, 760, 796, 995, 1202, 1592, 1990, 2404, 3005, 3781, 3980, 4808, 6010, 7562, 7960, 11419, 12020, 15124, 18905, 22838, 24040, 30248, 37810, 45676, 57095, 75620, 91352, 114190, 119599, 151240, 228380, 239198, 456760, 478396, 597995, 956792, 1195990, 2272381, 2391980, 4544762, 4783960, 9089524, 11361905, 18179048, 22723810, 45447620, 90895240]

約数ペア:

[(1, 90895240), (2, 45447620), (4, 22723810), (5, 18179048), (8, 11361905), (10, 9089524), (19, 4783960), (20, 4544762), (38, 2391980), (40, 2272381), (76, 1195990), (95, 956792), (152, 597995), (190, 478396), (199, 456760), (380, 239198), (398, 228380), (601, 151240), (760, 119599), (796, 114190), (995, 91352), (1202, 75620), (1592, 57095), (1990, 45676), (2404, 37810), (3005, 30248), (3781, 24040), (3980, 22838), (4808, 18905), (6010, 15124), (7562, 12020), (7960, 11419)]