90123520

素因数分解:

$2^8\times 5^1\times {\mathrm{181}}^1\times {\mathrm{389}}^1$

素因数の和:591

約数の個数: 72

約数和(自身を含む): 217624680

約数和(自身を除く): 127501160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 181, 256, 320, 362, 389, 640, 724, 778, 905, 1280, 1448, 1556, 1810, 1945, 2896, 3112, 3620, 3890, 5792, 6224, 7240, 7780, 11584, 12448, 14480, 15560, 23168, 24896, 28960, 31120, 46336, 49792, 57920, 62240, 70409, 99584, 115840, 124480, 140818, 231680, 248960, 281636, 352045, 497920, 563272, 704090, 1126544, 1408180, 2253088, 2816360, 4506176, 5632720, 9012352, 11265440, 18024704, 22530880, 45061760, 90123520]

約数ペア:

[(1, 90123520), (2, 45061760), (4, 22530880), (5, 18024704), (8, 11265440), (10, 9012352), (16, 5632720), (20, 4506176), (32, 2816360), (40, 2253088), (64, 1408180), (80, 1126544), (128, 704090), (160, 563272), (181, 497920), (256, 352045), (320, 281636), (362, 248960), (389, 231680), (640, 140818), (724, 124480), (778, 115840), (905, 99584), (1280, 70409), (1448, 62240), (1556, 57920), (1810, 49792), (1945, 46336), (2896, 31120), (3112, 28960), (3620, 24896), (3890, 23168), (5792, 15560), (6224, 14480), (7240, 12448), (7780, 11584)]