8989840

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1091}}^1$

素因数の和:1207

約数の個数: 40

約数和(自身を含む): 21123648

約数和(自身を除く): 12133808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1091, 1648, 2060, 2182, 4120, 4364, 5455, 8240, 8728, 10910, 17456, 21820, 43640, 87280, 112373, 224746, 449492, 561865, 898984, 1123730, 1797968, 2247460, 4494920, 8989840]

約数ペア:

[(1, 8989840), (2, 4494920), (4, 2247460), (5, 1797968), (8, 1123730), (10, 898984), (16, 561865), (20, 449492), (40, 224746), (80, 112373), (103, 87280), (206, 43640), (412, 21820), (515, 17456), (824, 10910), (1030, 8728), (1091, 8240), (1648, 5455), (2060, 4364), (2182, 4120)]