20440640

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5807}}^1$

素因数の和:5835

約数の個数: 56

約数和(自身を含む): 53108352

約数和(自身を除く): 32667712

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 5807, 11614, 23228, 29035, 46456, 58070, 63877, 92912, 116140, 127754, 185824, 232280, 255508, 319385, 371648, 464560, 511016, 638770, 929120, 1022032, 1277540, 1858240, 2044064, 2555080, 4088128, 5110160, 10220320, 20440640]

約数ペア:

[(1, 20440640), (2, 10220320), (4, 5110160), (5, 4088128), (8, 2555080), (10, 2044064), (11, 1858240), (16, 1277540), (20, 1022032), (22, 929120), (32, 638770), (40, 511016), (44, 464560), (55, 371648), (64, 319385), (80, 255508), (88, 232280), (110, 185824), (160, 127754), (176, 116140), (220, 92912), (320, 63877), (352, 58070), (440, 46456), (704, 29035), (880, 23228), (1760, 11614), (3520, 5807)]