30888680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{419}}^1$

素因数の和:546

約数の個数: 64

約数和(自身を含む): 74088000

約数和(自身を除く): 43199320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 97, 152, 190, 194, 380, 388, 419, 485, 760, 776, 838, 970, 1676, 1843, 1940, 2095, 3352, 3686, 3880, 4190, 7372, 7961, 8380, 9215, 14744, 15922, 16760, 18430, 31844, 36860, 39805, 40643, 63688, 73720, 79610, 81286, 159220, 162572, 203215, 318440, 325144, 406430, 772217, 812860, 1544434, 1625720, 3088868, 3861085, 6177736, 7722170, 15444340, 30888680]

約数ペア:

[(1, 30888680), (2, 15444340), (4, 7722170), (5, 6177736), (8, 3861085), (10, 3088868), (19, 1625720), (20, 1544434), (38, 812860), (40, 772217), (76, 406430), (95, 325144), (97, 318440), (152, 203215), (190, 162572), (194, 159220), (380, 81286), (388, 79610), (419, 73720), (485, 63688), (760, 40643), (776, 39805), (838, 36860), (970, 31844), (1676, 18430), (1843, 16760), (1940, 15922), (2095, 14744), (3352, 9215), (3686, 8380), (3880, 7961), (4190, 7372)]