31609160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{199}}^1$

素因数の和:259

約数の個数: 96

約数和(自身を含む): 82296000

約数和(自身を除く): 50686840

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 199, 209, 220, 361, 380, 398, 418, 440, 722, 760, 796, 836, 995, 1045, 1444, 1592, 1672, 1805, 1990, 2090, 2189, 2888, 3610, 3781, 3971, 3980, 4180, 4378, 7220, 7562, 7942, 7960, 8360, 8756, 10945, 14440, 15124, 15884, 17512, 18905, 19855, 21890, 30248, 31768, 37810, 39710, 41591, 43780, 71839, 75620, 79420, 83182, 87560, 143678, 151240, 158840, 166364, 207955, 287356, 332728, 359195, 415910, 574712, 718390, 790229, 831820, 1436780, 1580458, 1663640, 2873560, 3160916, 3951145, 6321832, 7902290, 15804580, 31609160]

約数ペア:

[(1, 31609160), (2, 15804580), (4, 7902290), (5, 6321832), (8, 3951145), (10, 3160916), (11, 2873560), (19, 1663640), (20, 1580458), (22, 1436780), (38, 831820), (40, 790229), (44, 718390), (55, 574712), (76, 415910), (88, 359195), (95, 332728), (110, 287356), (152, 207955), (190, 166364), (199, 158840), (209, 151240), (220, 143678), (361, 87560), (380, 83182), (398, 79420), (418, 75620), (440, 71839), (722, 43780), (760, 41591), (796, 39710), (836, 37810), (995, 31768), (1045, 30248), (1444, 21890), (1592, 19855), (1672, 18905), (1805, 17512), (1990, 15884), (2090, 15124), (2189, 14440), (2888, 10945), (3610, 8756), (3781, 8360), (3971, 7960), (3980, 7942), (4180, 7562), (4378, 7220)]