81112144

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{64171}}^1$

素因数の和:64258

約数の個数: 20

約数和(自身を含む): 159146560

約数和(自身を除く): 78034416

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 64171, 128342, 256684, 513368, 1026736, 5069509, 10139018, 20278036, 40556072, 81112144]

約数ペア:

[(1, 81112144), (2, 40556072), (4, 20278036), (8, 10139018), (16, 5069509), (79, 1026736), (158, 513368), (316, 256684), (632, 128342), (1264, 64171)]