31141980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5581}}^1$

素因数の和:5627

約数の個数: 72

約数和(自身を含む): 97528704

約数和(自身を除く): 66386724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 5581, 11162, 16743, 22324, 27905, 33486, 50229, 55810, 66972, 83715, 100458, 111620, 167430, 173011, 200916, 251145, 334860, 346022, 502290, 519033, 692044, 865055, 1004580, 1038066, 1557099, 1730110, 2076132, 2595165, 3114198, 3460220, 5190330, 6228396, 7785495, 10380660, 15570990, 31141980]

約数ペア:

[(1, 31141980), (2, 15570990), (3, 10380660), (4, 7785495), (5, 6228396), (6, 5190330), (9, 3460220), (10, 3114198), (12, 2595165), (15, 2076132), (18, 1730110), (20, 1557099), (30, 1038066), (31, 1004580), (36, 865055), (45, 692044), (60, 519033), (62, 502290), (90, 346022), (93, 334860), (124, 251145), (155, 200916), (180, 173011), (186, 167430), (279, 111620), (310, 100458), (372, 83715), (465, 66972), (558, 55810), (620, 50229), (930, 33486), (1116, 27905), (1395, 22324), (1860, 16743), (2790, 11162), (5580, 5581)]