778812890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{18917}}^1$

素因数の和:19126

約数の個数: 32

約数和(自身を含む): 1471063680

約数和(自身を除く): 692250790

約数列:

[1, 2, 5, 10, 23, 46, 115, 179, 230, 358, 895, 1790, 4117, 8234, 18917, 20585, 37834, 41170, 94585, 189170, 435091, 870182, 2175455, 3386143, 4350910, 6772286, 16930715, 33861430, 77881289, 155762578, 389406445, 778812890]

約数ペア:

[(1, 778812890), (2, 389406445), (5, 155762578), (10, 77881289), (23, 33861430), (46, 16930715), (115, 6772286), (179, 4350910), (230, 3386143), (358, 2175455), (895, 870182), (1790, 435091), (4117, 189170), (8234, 94585), (18917, 41170), (20585, 37834)]