18679220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5801}}^1$

素因数の和:5840

約数の個数: 48

約数和(自身を含む): 46787328

約数和(自身を除く): 28108108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 5801, 11602, 23204, 29005, 40607, 58010, 81214, 116020, 133423, 162428, 203035, 266846, 406070, 533692, 667115, 812140, 933961, 1334230, 1867922, 2668460, 3735844, 4669805, 9339610, 18679220]

約数ペア:

[(1, 18679220), (2, 9339610), (4, 4669805), (5, 3735844), (7, 2668460), (10, 1867922), (14, 1334230), (20, 933961), (23, 812140), (28, 667115), (35, 533692), (46, 406070), (70, 266846), (92, 203035), (115, 162428), (140, 133423), (161, 116020), (230, 81214), (322, 58010), (460, 40607), (644, 29005), (805, 23204), (1610, 11602), (3220, 5801)]