388017615740

素因数分解:

$2^2\times 5^1\times {\mathrm{9901}}^1\times {\mathrm{1959487}}^1$

素因数の和:1969397

約数の個数: 24

約数和(自身を含む): 814919707392

約数和(自身を除く): 426902091652

約数列:

[1, 2, 4, 5, 10, 20, 9901, 19802, 39604, 49505, 99010, 198020, 1959487, 3918974, 7837948, 9797435, 19594870, 39189740, 19400880787, 38801761574, 77603523148, 97004403935, 194008807870, 388017615740]

約数ペア:

[(1, 388017615740), (2, 194008807870), (4, 97004403935), (5, 77603523148), (10, 38801761574), (20, 19400880787), (9901, 39189740), (19802, 19594870), (39604, 9797435), (49505, 7837948), (99010, 3918974), (198020, 1959487)]