87887920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{863}}^1$

素因数の和:962

約数の個数: 80

約数和(自身を含む): 218557440

約数和(自身を除く): 130669520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 67, 76, 80, 95, 134, 152, 190, 268, 304, 335, 380, 536, 670, 760, 863, 1072, 1273, 1340, 1520, 1726, 2546, 2680, 3452, 4315, 5092, 5360, 6365, 6904, 8630, 10184, 12730, 13808, 16397, 17260, 20368, 25460, 32794, 34520, 50920, 57821, 65588, 69040, 81985, 101840, 115642, 131176, 163970, 231284, 262352, 289105, 327940, 462568, 578210, 655880, 925136, 1098599, 1156420, 1311760, 2197198, 2312840, 4394396, 4625680, 5492995, 8788792, 10985990, 17577584, 21971980, 43943960, 87887920]

約数ペア:

[(1, 87887920), (2, 43943960), (4, 21971980), (5, 17577584), (8, 10985990), (10, 8788792), (16, 5492995), (19, 4625680), (20, 4394396), (38, 2312840), (40, 2197198), (67, 1311760), (76, 1156420), (80, 1098599), (95, 925136), (134, 655880), (152, 578210), (190, 462568), (268, 327940), (304, 289105), (335, 262352), (380, 231284), (536, 163970), (670, 131176), (760, 115642), (863, 101840), (1072, 81985), (1273, 69040), (1340, 65588), (1520, 57821), (1726, 50920), (2546, 34520), (2680, 32794), (3452, 25460), (4315, 20368), (5092, 17260), (5360, 16397), (6365, 13808), (6904, 12730), (8630, 10184)]