40890290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{20143}}^1$

素因数の和:20186

約数の個数: 32

約数和(自身を含む): 87022080

約数和(自身を除く): 46131790

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 20143, 40286, 100715, 141001, 201430, 282002, 584147, 705005, 1168294, 1410010, 2920735, 4089029, 5841470, 8178058, 20445145, 40890290]

約数ペア:

[(1, 40890290), (2, 20445145), (5, 8178058), (7, 5841470), (10, 4089029), (14, 2920735), (29, 1410010), (35, 1168294), (58, 705005), (70, 584147), (145, 282002), (203, 201430), (290, 141001), (406, 100715), (1015, 40286), (2030, 20143)]