81527920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{397}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 202540608

約数和(自身を除く): 121012688

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 151, 170, 272, 302, 340, 397, 604, 680, 755, 794, 1208, 1360, 1510, 1588, 1985, 2416, 2567, 3020, 3176, 3970, 5134, 6040, 6352, 6749, 7940, 10268, 12080, 12835, 13498, 15880, 20536, 25670, 26996, 31760, 33745, 41072, 51340, 53992, 59947, 67490, 102680, 107984, 119894, 134980, 205360, 239788, 269960, 299735, 479576, 539920, 599470, 959152, 1019099, 1198940, 2038198, 2397880, 4076396, 4795760, 5095495, 8152792, 10190990, 16305584, 20381980, 40763960, 81527920]

約数ペア:

[(1, 81527920), (2, 40763960), (4, 20381980), (5, 16305584), (8, 10190990), (10, 8152792), (16, 5095495), (17, 4795760), (20, 4076396), (34, 2397880), (40, 2038198), (68, 1198940), (80, 1019099), (85, 959152), (136, 599470), (151, 539920), (170, 479576), (272, 299735), (302, 269960), (340, 239788), (397, 205360), (604, 134980), (680, 119894), (755, 107984), (794, 102680), (1208, 67490), (1360, 59947), (1510, 53992), (1588, 51340), (1985, 41072), (2416, 33745), (2567, 31760), (3020, 26996), (3176, 25670), (3970, 20536), (5134, 15880), (6040, 13498), (6352, 12835), (6749, 12080), (7940, 10268)]