31590180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{787}}^1$

素因数の和:1025

約数の個数: 72

約数和(自身を含む): 96375552

約数和(自身を除く): 64785372

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 223, 446, 669, 787, 892, 1115, 1338, 1574, 2007, 2230, 2361, 2676, 3148, 3345, 3935, 4014, 4460, 4722, 6690, 7083, 7870, 8028, 9444, 10035, 11805, 13380, 14166, 15740, 20070, 23610, 28332, 35415, 40140, 47220, 70830, 141660, 175501, 351002, 526503, 702004, 877505, 1053006, 1579509, 1755010, 2106012, 2632515, 3159018, 3510020, 5265030, 6318036, 7897545, 10530060, 15795090, 31590180]

約数ペア:

[(1, 31590180), (2, 15795090), (3, 10530060), (4, 7897545), (5, 6318036), (6, 5265030), (9, 3510020), (10, 3159018), (12, 2632515), (15, 2106012), (18, 1755010), (20, 1579509), (30, 1053006), (36, 877505), (45, 702004), (60, 526503), (90, 351002), (180, 175501), (223, 141660), (446, 70830), (669, 47220), (787, 40140), (892, 35415), (1115, 28332), (1338, 23610), (1574, 20070), (2007, 15740), (2230, 14166), (2361, 13380), (2676, 11805), (3148, 10035), (3345, 9444), (3935, 8028), (4014, 7870), (4460, 7083), (4722, 6690)]