20138996

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{631}}^1$

素因数の和:815

約数の個数: 24

約数和(自身を含む): 36099840

約数和(自身を除く): 15960844

約数列:

[1, 2, 4, 79, 101, 158, 202, 316, 404, 631, 1262, 2524, 7979, 15958, 31916, 49849, 63731, 99698, 127462, 199396, 254924, 5034749, 10069498, 20138996]

約数ペア:

[(1, 20138996), (2, 10069498), (4, 5034749), (79, 254924), (101, 199396), (158, 127462), (202, 99698), (316, 63731), (404, 49849), (631, 31916), (1262, 15958), (2524, 7979)]