20341480

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3413}}^1$

素因数の和:3573

約数の個数: 32

約数和(自身を含む): 46089000

約数和(自身を除く): 25747520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 3413, 5960, 6826, 13652, 17065, 27304, 34130, 68260, 136520, 508537, 1017074, 2034148, 2542685, 4068296, 5085370, 10170740, 20341480]

約数ペア:

[(1, 20341480), (2, 10170740), (4, 5085370), (5, 4068296), (8, 2542685), (10, 2034148), (20, 1017074), (40, 508537), (149, 136520), (298, 68260), (596, 34130), (745, 27304), (1192, 17065), (1490, 13652), (2980, 6826), (3413, 5960)]