490236495

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{491}}^1$

素因数の和:800

約数の個数: 64

約数和(自身を含む): 926125056

約数和(自身を除く): 435888561

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 257, 259, 491, 555, 771, 777, 1285, 1295, 1473, 1799, 2455, 3437, 3855, 3885, 5397, 7365, 8995, 9509, 10311, 17185, 18167, 26985, 28527, 47545, 51555, 54501, 66563, 90835, 126187, 127169, 142635, 199689, 272505, 332815, 378561, 381507, 630935, 635845, 883309, 998445, 1892805, 1907535, 2649927, 4416545, 4668919, 13249635, 14006757, 23344595, 32682433, 70033785, 98047299, 163412165, 490236495]

約数ペア:

[(1, 490236495), (3, 163412165), (5, 98047299), (7, 70033785), (15, 32682433), (21, 23344595), (35, 14006757), (37, 13249635), (105, 4668919), (111, 4416545), (185, 2649927), (257, 1907535), (259, 1892805), (491, 998445), (555, 883309), (771, 635845), (777, 630935), (1285, 381507), (1295, 378561), (1473, 332815), (1799, 272505), (2455, 199689), (3437, 142635), (3855, 127169), (3885, 126187), (5397, 90835), (7365, 66563), (8995, 54501), (9509, 51555), (10311, 47545), (17185, 28527), (18167, 26985)]