404740

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{59}}^1$

素因数の和:89

約数の個数: 48

約数和(自身を含む): 1008000

約数和(自身を除く): 603260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 59, 70, 98, 118, 140, 196, 236, 245, 295, 343, 413, 490, 590, 686, 826, 980, 1180, 1372, 1652, 1715, 2065, 2891, 3430, 4130, 5782, 6860, 8260, 11564, 14455, 20237, 28910, 40474, 57820, 80948, 101185, 202370, 404740]

約数ペア:

[(1, 404740), (2, 202370), (4, 101185), (5, 80948), (7, 57820), (10, 40474), (14, 28910), (20, 20237), (28, 14455), (35, 11564), (49, 8260), (59, 6860), (70, 5782), (98, 4130), (118, 3430), (140, 2891), (196, 2065), (236, 1715), (245, 1652), (295, 1372), (343, 1180), (413, 980), (490, 826), (590, 686)]