20086768

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{359}}^1$

素因数の和:649

約数の個数: 40

約数和(自身を含む): 42184800

約数和(自身を除く): 22098032

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 269, 359, 538, 718, 1076, 1436, 2152, 2872, 3497, 4304, 4667, 5744, 6994, 9334, 13988, 18668, 27976, 37336, 55952, 74672, 96571, 193142, 386284, 772568, 1255423, 1545136, 2510846, 5021692, 10043384, 20086768]

約数ペア:

[(1, 20086768), (2, 10043384), (4, 5021692), (8, 2510846), (13, 1545136), (16, 1255423), (26, 772568), (52, 386284), (104, 193142), (208, 96571), (269, 74672), (359, 55952), (538, 37336), (718, 27976), (1076, 18668), (1436, 13988), (2152, 9334), (2872, 6994), (3497, 5744), (4304, 4667)]