71994520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{138451}}^1$

素因数の和:138475

約数の個数: 32

約数和(自身を含む): 174449520

約数和(自身を除く): 102455000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 138451, 276902, 553804, 692255, 1107608, 1384510, 1799863, 2769020, 3599726, 5538040, 7199452, 8999315, 14398904, 17998630, 35997260, 71994520]

約数ペア:

[(1, 71994520), (2, 35997260), (4, 17998630), (5, 14398904), (8, 8999315), (10, 7199452), (13, 5538040), (20, 3599726), (26, 2769020), (40, 1799863), (52, 1384510), (65, 1107608), (104, 692255), (130, 553804), (260, 276902), (520, 138451)]