19985050

素因数分解:

$2^1\times 5^2\times {\mathrm{313}}^1\times {\mathrm{1277}}^1$

素因数の和:1602

約数の個数: 24

約数和(自身を含む): 37320156

約数和(自身を除く): 17335106

約数列:

[1, 2, 5, 10, 25, 50, 313, 626, 1277, 1565, 2554, 3130, 6385, 7825, 12770, 15650, 31925, 63850, 399701, 799402, 1998505, 3997010, 9992525, 19985050]

約数ペア:

[(1, 19985050), (2, 9992525), (5, 3997010), (10, 1998505), (25, 799402), (50, 399701), (313, 63850), (626, 31925), (1277, 15650), (1565, 12770), (2554, 7825), (3130, 6385)]