20432620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{883}}^1$

素因数の和:994

約数の個数: 48

約数和(自身を含む): 46781280

約数和(自身を除く): 26348660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 883, 890, 1157, 1766, 1780, 2314, 3532, 4415, 4628, 5785, 8830, 11479, 11570, 17660, 22958, 23140, 45916, 57395, 78587, 114790, 157174, 229580, 314348, 392935, 785870, 1021631, 1571740, 2043262, 4086524, 5108155, 10216310, 20432620]

約数ペア:

[(1, 20432620), (2, 10216310), (4, 5108155), (5, 4086524), (10, 2043262), (13, 1571740), (20, 1021631), (26, 785870), (52, 392935), (65, 314348), (89, 229580), (130, 157174), (178, 114790), (260, 78587), (356, 57395), (445, 45916), (883, 23140), (890, 22958), (1157, 17660), (1766, 11570), (1780, 11479), (2314, 8830), (3532, 5785), (4415, 4628)]