31485220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1459}}^1$

素因数の和:1564

約数の個数: 48

約数和(自身を含む): 72112320

約数和(自身を除く): 40627100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 130, 166, 260, 332, 415, 830, 1079, 1459, 1660, 2158, 2918, 4316, 5395, 5836, 7295, 10790, 14590, 18967, 21580, 29180, 37934, 75868, 94835, 121097, 189670, 242194, 379340, 484388, 605485, 1210970, 1574261, 2421940, 3148522, 6297044, 7871305, 15742610, 31485220]

約数ペア:

[(1, 31485220), (2, 15742610), (4, 7871305), (5, 6297044), (10, 3148522), (13, 2421940), (20, 1574261), (26, 1210970), (52, 605485), (65, 484388), (83, 379340), (130, 242194), (166, 189670), (260, 121097), (332, 94835), (415, 75868), (830, 37934), (1079, 29180), (1459, 21580), (1660, 18967), (2158, 14590), (2918, 10790), (4316, 7295), (5395, 5836)]