251017540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{7639}}^1$

素因数の和:7732

約数の個数: 48

約数和(自身を含む): 554480640

約数和(自身を除く): 303463100

約数列:

[1, 2, 4, 5, 10, 20, 31, 53, 62, 106, 124, 155, 212, 265, 310, 530, 620, 1060, 1643, 3286, 6572, 7639, 8215, 15278, 16430, 30556, 32860, 38195, 76390, 152780, 236809, 404867, 473618, 809734, 947236, 1184045, 1619468, 2024335, 2368090, 4048670, 4736180, 8097340, 12550877, 25101754, 50203508, 62754385, 125508770, 251017540]

約数ペア:

[(1, 251017540), (2, 125508770), (4, 62754385), (5, 50203508), (10, 25101754), (20, 12550877), (31, 8097340), (53, 4736180), (62, 4048670), (106, 2368090), (124, 2024335), (155, 1619468), (212, 1184045), (265, 947236), (310, 809734), (530, 473618), (620, 404867), (1060, 236809), (1643, 152780), (3286, 76390), (6572, 38195), (7639, 32860), (8215, 30556), (15278, 16430)]