201516245

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{2551}}^1$

素因数の和:2661

約数の個数: 32

約数和(自身を含む): 288600576

約数和(自身を除く): 87084331

約数列:

[1, 5, 7, 35, 37, 61, 185, 259, 305, 427, 1295, 2135, 2257, 2551, 11285, 12755, 15799, 17857, 78995, 89285, 94387, 155611, 471935, 660709, 778055, 1089277, 3303545, 5446385, 5757607, 28788035, 40303249, 201516245]

約数ペア:

[(1, 201516245), (5, 40303249), (7, 28788035), (35, 5757607), (37, 5446385), (61, 3303545), (185, 1089277), (259, 778055), (305, 660709), (427, 471935), (1295, 155611), (2135, 94387), (2257, 89285), (2551, 78995), (11285, 17857), (12755, 15799)]