87723320

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{2213}}^1$

素因数の和:3215

約数の個数: 32

約数和(自身を含む): 197665920

約数和(自身を除く): 109942600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1982, 2213, 3964, 4426, 4955, 7928, 8852, 9910, 11065, 17704, 19820, 22130, 39640, 44260, 88520, 2193083, 4386166, 8772332, 10965415, 17544664, 21930830, 43861660, 87723320]

約数ペア:

[(1, 87723320), (2, 43861660), (4, 21930830), (5, 17544664), (8, 10965415), (10, 8772332), (20, 4386166), (40, 2193083), (991, 88520), (1982, 44260), (2213, 39640), (3964, 22130), (4426, 19820), (4955, 17704), (7928, 11065), (8852, 9910)]