31816460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1549}}^1$

素因数の和:1650

約数の個数: 48

約数和(自身を含む): 72912000

約数和(自身を除く): 41095540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1549, 1580, 2054, 3098, 4108, 5135, 6196, 7745, 10270, 15490, 20137, 20540, 30980, 40274, 80548, 100685, 122371, 201370, 244742, 402740, 489484, 611855, 1223710, 1590823, 2447420, 3181646, 6363292, 7954115, 15908230, 31816460]

約数ペア:

[(1, 31816460), (2, 15908230), (4, 7954115), (5, 6363292), (10, 3181646), (13, 2447420), (20, 1590823), (26, 1223710), (52, 611855), (65, 489484), (79, 402740), (130, 244742), (158, 201370), (260, 122371), (316, 100685), (395, 80548), (790, 40274), (1027, 30980), (1549, 20540), (1580, 20137), (2054, 15490), (3098, 10270), (4108, 7745), (5135, 6196)]