4012640

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{809}}^1$

素因数の和:855

約数の個数: 48

約数和(自身を含む): 9797760

約数和(自身を除く): 5785120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 809, 992, 1240, 1618, 2480, 3236, 4045, 4960, 6472, 8090, 12944, 16180, 25079, 25888, 32360, 50158, 64720, 100316, 125395, 129440, 200632, 250790, 401264, 501580, 802528, 1003160, 2006320, 4012640]

約数ペア:

[(1, 4012640), (2, 2006320), (4, 1003160), (5, 802528), (8, 501580), (10, 401264), (16, 250790), (20, 200632), (31, 129440), (32, 125395), (40, 100316), (62, 64720), (80, 50158), (124, 32360), (155, 25888), (160, 25079), (248, 16180), (310, 12944), (496, 8090), (620, 6472), (809, 4960), (992, 4045), (1240, 3236), (1618, 2480)]