211340440

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{15139}}^1$

素因数の和:15499

約数の個数: 32

約数和(自身を含む): 476910000

約数和(自身を除く): 265569560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2792, 3490, 6980, 13960, 15139, 30278, 60556, 75695, 121112, 151390, 302780, 605560, 5283511, 10567022, 21134044, 26417555, 42268088, 52835110, 105670220, 211340440]

約数ペア:

[(1, 211340440), (2, 105670220), (4, 52835110), (5, 42268088), (8, 26417555), (10, 21134044), (20, 10567022), (40, 5283511), (349, 605560), (698, 302780), (1396, 151390), (1745, 121112), (2792, 75695), (3490, 60556), (6980, 30278), (13960, 15139)]