80490840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:897

約数の個数: 128

約数和(自身を含む): 260409600

約数和(自身を除く): 179918760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 43, 57, 60, 76, 86, 95, 114, 120, 129, 152, 172, 190, 215, 228, 258, 285, 344, 380, 430, 456, 516, 570, 645, 760, 817, 821, 860, 1032, 1140, 1290, 1634, 1642, 1720, 2280, 2451, 2463, 2580, 3268, 3284, 4085, 4105, 4902, 4926, 5160, 6536, 6568, 8170, 8210, 9804, 9852, 12255, 12315, 15599, 16340, 16420, 19608, 19704, 24510, 24630, 31198, 32680, 32840, 35303, 46797, 49020, 49260, 62396, 70606, 77995, 93594, 98040, 98520, 105909, 124792, 141212, 155990, 176515, 187188, 211818, 233985, 282424, 311980, 353030, 374376, 423636, 467970, 529545, 623960, 670757, 706060, 847272, 935940, 1059090, 1341514, 1412120, 1871880, 2012271, 2118180, 2683028, 3353785, 4024542, 4236360, 5366056, 6707570, 8049084, 10061355, 13415140, 16098168, 20122710, 26830280, 40245420, 80490840]

約数ペア:

[(1, 80490840), (2, 40245420), (3, 26830280), (4, 20122710), (5, 16098168), (6, 13415140), (8, 10061355), (10, 8049084), (12, 6707570), (15, 5366056), (19, 4236360), (20, 4024542), (24, 3353785), (30, 2683028), (38, 2118180), (40, 2012271), (43, 1871880), (57, 1412120), (60, 1341514), (76, 1059090), (86, 935940), (95, 847272), (114, 706060), (120, 670757), (129, 623960), (152, 529545), (172, 467970), (190, 423636), (215, 374376), (228, 353030), (258, 311980), (285, 282424), (344, 233985), (380, 211818), (430, 187188), (456, 176515), (516, 155990), (570, 141212), (645, 124792), (760, 105909), (817, 98520), (821, 98040), (860, 93594), (1032, 77995), (1140, 70606), (1290, 62396), (1634, 49260), (1642, 49020), (1720, 46797), (2280, 35303), (2451, 32840), (2463, 32680), (2580, 31198), (3268, 24630), (3284, 24510), (4085, 19704), (4105, 19608), (4902, 16420), (4926, 16340), (5160, 15599), (6536, 12315), (6568, 12255), (8170, 9852), (8210, 9804)]