90206920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1381}}^1$

素因数の和:1486

約数の個数: 64

約数和(自身を含む): 214928640

約数和(自身を除く): 124721720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 71, 92, 115, 142, 184, 230, 284, 355, 460, 568, 710, 920, 1381, 1420, 1633, 2762, 2840, 3266, 5524, 6532, 6905, 8165, 11048, 13064, 13810, 16330, 27620, 31763, 32660, 55240, 63526, 65320, 98051, 127052, 158815, 196102, 254104, 317630, 392204, 490255, 635260, 784408, 980510, 1270520, 1961020, 2255173, 3922040, 4510346, 9020692, 11275865, 18041384, 22551730, 45103460, 90206920]

約数ペア:

[(1, 90206920), (2, 45103460), (4, 22551730), (5, 18041384), (8, 11275865), (10, 9020692), (20, 4510346), (23, 3922040), (40, 2255173), (46, 1961020), (71, 1270520), (92, 980510), (115, 784408), (142, 635260), (184, 490255), (230, 392204), (284, 317630), (355, 254104), (460, 196102), (568, 158815), (710, 127052), (920, 98051), (1381, 65320), (1420, 63526), (1633, 55240), (2762, 32660), (2840, 31763), (3266, 27620), (5524, 16330), (6532, 13810), (6905, 13064), (8165, 11048)]