81513460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{83177}}^1$

素因数の和:83200

約数の個数: 36

約数和(自身を含む): 199128132

約数和(自身を除く): 117614672

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 83177, 166354, 332708, 415885, 582239, 831770, 1164478, 1663540, 2328956, 2911195, 4075673, 5822390, 8151346, 11644780, 16302692, 20378365, 40756730, 81513460]

約数ペア:

[(1, 81513460), (2, 40756730), (4, 20378365), (5, 16302692), (7, 11644780), (10, 8151346), (14, 5822390), (20, 4075673), (28, 2911195), (35, 2328956), (49, 1663540), (70, 1164478), (98, 831770), (140, 582239), (196, 415885), (245, 332708), (490, 166354), (980, 83177)]