15201320

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{907}}^1$

素因数の和:1337

約数の個数: 32

約数和(自身を含む): 34322400

約数和(自身を除く): 19121080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 907, 1676, 1814, 2095, 3352, 3628, 4190, 4535, 7256, 8380, 9070, 16760, 18140, 36280, 380033, 760066, 1520132, 1900165, 3040264, 3800330, 7600660, 15201320]

約数ペア:

[(1, 15201320), (2, 7600660), (4, 3800330), (5, 3040264), (8, 1900165), (10, 1520132), (20, 760066), (40, 380033), (419, 36280), (838, 18140), (907, 16760), (1676, 9070), (1814, 8380), (2095, 7256), (3352, 4535), (3628, 4190)]