18887728

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:341

約数の個数: 40

約数和(自身を含む): 37695008

約数和(自身を除く): 18807280

約数列:

[1, 2, 4, 8, 16, 73, 103, 146, 157, 206, 292, 314, 412, 584, 628, 824, 1168, 1256, 1648, 2512, 7519, 11461, 15038, 16171, 22922, 30076, 32342, 45844, 60152, 64684, 91688, 120304, 129368, 183376, 258736, 1180483, 2360966, 4721932, 9443864, 18887728]

約数ペア:

[(1, 18887728), (2, 9443864), (4, 4721932), (8, 2360966), (16, 1180483), (73, 258736), (103, 183376), (146, 129368), (157, 120304), (206, 91688), (292, 64684), (314, 60152), (412, 45844), (584, 32342), (628, 30076), (824, 22922), (1168, 16171), (1256, 15038), (1648, 11461), (2512, 7519)]