20103320

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5647}}^1$

素因数の和:5747

約数の個数: 32

約数和(自身を含む): 45748800

約数和(自身を除く): 25645480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 5647, 11294, 22588, 28235, 45176, 56470, 112940, 225880, 502583, 1005166, 2010332, 2512915, 4020664, 5025830, 10051660, 20103320]

約数ペア:

[(1, 20103320), (2, 10051660), (4, 5025830), (5, 4020664), (8, 2512915), (10, 2010332), (20, 1005166), (40, 502583), (89, 225880), (178, 112940), (356, 56470), (445, 45176), (712, 28235), (890, 22588), (1780, 11294), (3560, 5647)]