291240290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{919}}^1$

素因数の和:1047

約数の個数: 64

約数和(自身を含む): 594570240

約数和(自身を除く): 303329950

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 67, 86, 110, 134, 215, 335, 430, 473, 670, 737, 919, 946, 1474, 1838, 2365, 2881, 3685, 4595, 4730, 5762, 7370, 9190, 10109, 14405, 20218, 28810, 31691, 39517, 50545, 61573, 63382, 79034, 101090, 123146, 158455, 197585, 307865, 316910, 395170, 434687, 615730, 677303, 869374, 1354606, 2173435, 2647639, 3386515, 4346870, 5295278, 6773030, 13238195, 26476390, 29124029, 58248058, 145620145, 291240290]

約数ペア:

[(1, 291240290), (2, 145620145), (5, 58248058), (10, 29124029), (11, 26476390), (22, 13238195), (43, 6773030), (55, 5295278), (67, 4346870), (86, 3386515), (110, 2647639), (134, 2173435), (215, 1354606), (335, 869374), (430, 677303), (473, 615730), (670, 434687), (737, 395170), (919, 316910), (946, 307865), (1474, 197585), (1838, 158455), (2365, 123146), (2881, 101090), (3685, 79034), (4595, 63382), (4730, 61573), (5762, 50545), (7370, 39517), (9190, 31691), (10109, 28810), (14405, 20218)]