290465780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{2689}}^1$

素因数の和:3200

約数の個数: 48

約数和(自身を含む): 667033920

約数和(自身を除く): 376568140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 491, 982, 1964, 2455, 2689, 4910, 5378, 5401, 9820, 10756, 10802, 13445, 21604, 26890, 27005, 29579, 53780, 54010, 59158, 108020, 118316, 147895, 295790, 591580, 1320299, 2640598, 5281196, 6601495, 13202990, 14523289, 26405980, 29046578, 58093156, 72616445, 145232890, 290465780]

約数ペア:

[(1, 290465780), (2, 145232890), (4, 72616445), (5, 58093156), (10, 29046578), (11, 26405980), (20, 14523289), (22, 13202990), (44, 6601495), (55, 5281196), (110, 2640598), (220, 1320299), (491, 591580), (982, 295790), (1964, 147895), (2455, 118316), (2689, 108020), (4910, 59158), (5378, 54010), (5401, 53780), (9820, 29579), (10756, 27005), (10802, 26890), (13445, 21604)]