80671960

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{12373}}^1$

素因数の和:12547

約数の個数: 32

約数和(自身を含む): 182640240

約数和(自身を除く): 101968280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 12373, 24746, 49492, 61865, 98984, 123730, 247460, 494920, 2016799, 4033598, 8067196, 10083995, 16134392, 20167990, 40335980, 80671960]

約数ペア:

[(1, 80671960), (2, 40335980), (4, 20167990), (5, 16134392), (8, 10083995), (10, 8067196), (20, 4033598), (40, 2016799), (163, 494920), (326, 247460), (652, 123730), (815, 98984), (1304, 61865), (1630, 49492), (3260, 24746), (6520, 12373)]