4457840

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{541}}^1$

素因数の和:657

約数の個数: 40

約数和(自身を含む): 10484448

約数和(自身を除く): 6026608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 541, 824, 1030, 1082, 1648, 2060, 2164, 2705, 4120, 4328, 5410, 8240, 8656, 10820, 21640, 43280, 55723, 111446, 222892, 278615, 445784, 557230, 891568, 1114460, 2228920, 4457840]

約数ペア:

[(1, 4457840), (2, 2228920), (4, 1114460), (5, 891568), (8, 557230), (10, 445784), (16, 278615), (20, 222892), (40, 111446), (80, 55723), (103, 43280), (206, 21640), (412, 10820), (515, 8656), (541, 8240), (824, 5410), (1030, 4328), (1082, 4120), (1648, 2705), (2060, 2164)]