18053840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{313}}^1$

素因数の和:436

約数の個数: 80

約数和(自身を含む): 48592128

約数和(自身を除く): 30538288

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 103, 112, 140, 206, 280, 313, 412, 515, 560, 626, 721, 824, 1030, 1252, 1442, 1565, 1648, 2060, 2191, 2504, 2884, 3130, 3605, 4120, 4382, 5008, 5768, 6260, 7210, 8240, 8764, 10955, 11536, 12520, 14420, 17528, 21910, 25040, 28840, 32239, 35056, 43820, 57680, 64478, 87640, 128956, 161195, 175280, 225673, 257912, 322390, 451346, 515824, 644780, 902692, 1128365, 1289560, 1805384, 2256730, 2579120, 3610768, 4513460, 9026920, 18053840]

約数ペア:

[(1, 18053840), (2, 9026920), (4, 4513460), (5, 3610768), (7, 2579120), (8, 2256730), (10, 1805384), (14, 1289560), (16, 1128365), (20, 902692), (28, 644780), (35, 515824), (40, 451346), (56, 322390), (70, 257912), (80, 225673), (103, 175280), (112, 161195), (140, 128956), (206, 87640), (280, 64478), (313, 57680), (412, 43820), (515, 35056), (560, 32239), (626, 28840), (721, 25040), (824, 21910), (1030, 17528), (1252, 14420), (1442, 12520), (1565, 11536), (1648, 10955), (2060, 8764), (2191, 8240), (2504, 7210), (2884, 6260), (3130, 5768), (3605, 5008), (4120, 4382)]