201020320

素因数分解:

$2^5\times 5^1\times {\mathrm{809}}^1\times {\mathrm{1553}}^1$

素因数の和:2377

約数の個数: 48

約数和(自身を含む): 475803720

約数和(自身を除く): 274783400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 809, 1553, 1618, 3106, 3236, 4045, 6212, 6472, 7765, 8090, 12424, 12944, 15530, 16180, 24848, 25888, 31060, 32360, 49696, 62120, 64720, 124240, 129440, 248480, 1256377, 2512754, 5025508, 6281885, 10051016, 12563770, 20102032, 25127540, 40204064, 50255080, 100510160, 201020320]

約数ペア:

[(1, 201020320), (2, 100510160), (4, 50255080), (5, 40204064), (8, 25127540), (10, 20102032), (16, 12563770), (20, 10051016), (32, 6281885), (40, 5025508), (80, 2512754), (160, 1256377), (809, 248480), (1553, 129440), (1618, 124240), (3106, 64720), (3236, 62120), (4045, 49696), (6212, 32360), (6472, 31060), (7765, 25888), (8090, 24848), (12424, 16180), (12944, 15530)]