23840920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{167}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 55883520

約数和(自身を除く): 32042600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 83, 86, 166, 167, 172, 215, 332, 334, 344, 415, 430, 664, 668, 830, 835, 860, 1336, 1660, 1670, 1720, 3320, 3340, 3569, 6680, 7138, 7181, 13861, 14276, 14362, 17845, 27722, 28552, 28724, 35690, 35905, 55444, 57448, 69305, 71380, 71810, 110888, 138610, 142760, 143620, 277220, 287240, 554440, 596023, 1192046, 2384092, 2980115, 4768184, 5960230, 11920460, 23840920]

約数ペア:

[(1, 23840920), (2, 11920460), (4, 5960230), (5, 4768184), (8, 2980115), (10, 2384092), (20, 1192046), (40, 596023), (43, 554440), (83, 287240), (86, 277220), (166, 143620), (167, 142760), (172, 138610), (215, 110888), (332, 71810), (334, 71380), (344, 69305), (415, 57448), (430, 55444), (664, 35905), (668, 35690), (830, 28724), (835, 28552), (860, 27722), (1336, 17845), (1660, 14362), (1670, 14276), (1720, 13861), (3320, 7181), (3340, 7138), (3569, 6680)]