81084320

素因数分解:

$2^5\times 5^1\times {\mathrm{229}}^1\times {\mathrm{2213}}^1$

素因数の和:2457

約数の個数: 48

約数和(自身を含む): 192485160

約数和(自身を除く): 111400840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 229, 458, 916, 1145, 1832, 2213, 2290, 3664, 4426, 4580, 7328, 8852, 9160, 11065, 17704, 18320, 22130, 35408, 36640, 44260, 70816, 88520, 177040, 354080, 506777, 1013554, 2027108, 2533885, 4054216, 5067770, 8108432, 10135540, 16216864, 20271080, 40542160, 81084320]

約数ペア:

[(1, 81084320), (2, 40542160), (4, 20271080), (5, 16216864), (8, 10135540), (10, 8108432), (16, 5067770), (20, 4054216), (32, 2533885), (40, 2027108), (80, 1013554), (160, 506777), (229, 354080), (458, 177040), (916, 88520), (1145, 70816), (1832, 44260), (2213, 36640), (2290, 35408), (3664, 22130), (4426, 18320), (4580, 17704), (7328, 11065), (8852, 9160)]