811181720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{601}}^1\times {\mathrm{823}}^1$

素因数の和:1476

約数の個数: 64

約数和(自身を含む): 1875061440

約数和(自身を除く): 1063879720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 601, 820, 823, 1202, 1640, 1646, 2404, 3005, 3292, 4115, 4808, 6010, 6584, 8230, 12020, 16460, 24040, 24641, 32920, 33743, 49282, 67486, 98564, 123205, 134972, 168715, 197128, 246410, 269944, 337430, 492820, 494623, 674860, 985640, 989246, 1349720, 1978492, 2473115, 3956984, 4946230, 9892460, 19784920, 20279543, 40559086, 81118172, 101397715, 162236344, 202795430, 405590860, 811181720]

約数ペア:

[(1, 811181720), (2, 405590860), (4, 202795430), (5, 162236344), (8, 101397715), (10, 81118172), (20, 40559086), (40, 20279543), (41, 19784920), (82, 9892460), (164, 4946230), (205, 3956984), (328, 2473115), (410, 1978492), (601, 1349720), (820, 989246), (823, 985640), (1202, 674860), (1640, 494623), (1646, 492820), (2404, 337430), (3005, 269944), (3292, 246410), (4115, 197128), (4808, 168715), (6010, 134972), (6584, 123205), (8230, 98564), (12020, 67486), (16460, 49282), (24040, 33743), (24641, 32920)]