64740080

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{263}}^1$

素因数の和:474

約数の個数: 80

約数和(自身を含む): 160864704

約数和(自身を除く): 96124624

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 181, 263, 272, 340, 362, 526, 680, 724, 905, 1052, 1315, 1360, 1448, 1810, 2104, 2630, 2896, 3077, 3620, 4208, 4471, 5260, 6154, 7240, 8942, 10520, 12308, 14480, 15385, 17884, 21040, 22355, 24616, 30770, 35768, 44710, 47603, 49232, 61540, 71536, 89420, 95206, 123080, 178840, 190412, 238015, 246160, 357680, 380824, 476030, 761648, 809251, 952060, 1618502, 1904120, 3237004, 3808240, 4046255, 6474008, 8092510, 12948016, 16185020, 32370040, 64740080]

約数ペア:

[(1, 64740080), (2, 32370040), (4, 16185020), (5, 12948016), (8, 8092510), (10, 6474008), (16, 4046255), (17, 3808240), (20, 3237004), (34, 1904120), (40, 1618502), (68, 952060), (80, 809251), (85, 761648), (136, 476030), (170, 380824), (181, 357680), (263, 246160), (272, 238015), (340, 190412), (362, 178840), (526, 123080), (680, 95206), (724, 89420), (905, 71536), (1052, 61540), (1315, 49232), (1360, 47603), (1448, 44710), (1810, 35768), (2104, 30770), (2630, 24616), (2896, 22355), (3077, 21040), (3620, 17884), (4208, 15385), (4471, 14480), (5260, 12308), (6154, 10520), (7240, 8942)]