331313180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{16921}}^1$

素因数の和:17030

約数の個数: 48

約数和(自身を含む): 767581920

約数和(自身を除く): 436268740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4895, 9790, 16921, 19580, 33842, 67684, 84605, 169210, 186131, 338420, 372262, 744524, 930655, 1505969, 1861310, 3011938, 3722620, 6023876, 7529845, 15059690, 16565659, 30119380, 33131318, 66262636, 82828295, 165656590, 331313180]

約数ペア:

[(1, 331313180), (2, 165656590), (4, 82828295), (5, 66262636), (10, 33131318), (11, 30119380), (20, 16565659), (22, 15059690), (44, 7529845), (55, 6023876), (89, 3722620), (110, 3011938), (178, 1861310), (220, 1505969), (356, 930655), (445, 744524), (890, 372262), (979, 338420), (1780, 186131), (1958, 169210), (3916, 84605), (4895, 67684), (9790, 33842), (16921, 19580)]