28942580

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 63504000

約数和(自身を除く): 34561420

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 139, 145, 278, 290, 359, 556, 580, 695, 718, 1390, 1436, 1795, 2780, 3590, 4031, 7180, 8062, 10411, 16124, 20155, 20822, 40310, 41644, 49901, 52055, 80620, 99802, 104110, 199604, 208220, 249505, 499010, 998020, 1447129, 2894258, 5788516, 7235645, 14471290, 28942580]

約数ペア:

[(1, 28942580), (2, 14471290), (4, 7235645), (5, 5788516), (10, 2894258), (20, 1447129), (29, 998020), (58, 499010), (116, 249505), (139, 208220), (145, 199604), (278, 104110), (290, 99802), (359, 80620), (556, 52055), (580, 49901), (695, 41644), (718, 40310), (1390, 20822), (1436, 20155), (1795, 16124), (2780, 10411), (3590, 8062), (4031, 7180)]