20129974528

素因数分解:

$2^8\times {\mathrm{71}}^1\times {\mathrm{1107503}}^1$

素因数の和:1107590

約数の個数: 36

約数和(自身を含む): 40747287168

約数和(自身を除く): 20617312640

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 256, 284, 568, 1136, 2272, 4544, 9088, 18176, 1107503, 2215006, 4430012, 8860024, 17720048, 35440096, 70880192, 78632713, 141760384, 157265426, 283520768, 314530852, 629061704, 1258123408, 2516246816, 5032493632, 10064987264, 20129974528]

約数ペア:

[(1, 20129974528), (2, 10064987264), (4, 5032493632), (8, 2516246816), (16, 1258123408), (32, 629061704), (64, 314530852), (71, 283520768), (128, 157265426), (142, 141760384), (256, 78632713), (284, 70880192), (568, 35440096), (1136, 17720048), (2272, 8860024), (4544, 4430012), (9088, 2215006), (18176, 1107503)]