87505640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1187}}^1$

素因数の和:1314

約数の個数: 64

約数和(自身を含む): 209563200

約数和(自身を除く): 122057560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 97, 152, 190, 194, 380, 388, 485, 760, 776, 970, 1187, 1843, 1940, 2374, 3686, 3880, 4748, 5935, 7372, 9215, 9496, 11870, 14744, 18430, 22553, 23740, 36860, 45106, 47480, 73720, 90212, 112765, 115139, 180424, 225530, 230278, 451060, 460556, 575695, 902120, 921112, 1151390, 2187641, 2302780, 4375282, 4605560, 8750564, 10938205, 17501128, 21876410, 43752820, 87505640]

約数ペア:

[(1, 87505640), (2, 43752820), (4, 21876410), (5, 17501128), (8, 10938205), (10, 8750564), (19, 4605560), (20, 4375282), (38, 2302780), (40, 2187641), (76, 1151390), (95, 921112), (97, 902120), (152, 575695), (190, 460556), (194, 451060), (380, 230278), (388, 225530), (485, 180424), (760, 115139), (776, 112765), (970, 90212), (1187, 73720), (1843, 47480), (1940, 45106), (2374, 36860), (3686, 23740), (3880, 22553), (4748, 18430), (5935, 14744), (7372, 11870), (9215, 9496)]