19755320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37991}}^1$

素因数の和:38015

約数の個数: 32

約数和(自身を含む): 47869920

約数和(自身を除く): 28114600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 37991, 75982, 151964, 189955, 303928, 379910, 493883, 759820, 987766, 1519640, 1975532, 2469415, 3951064, 4938830, 9877660, 19755320]

約数ペア:

[(1, 19755320), (2, 9877660), (4, 4938830), (5, 3951064), (8, 2469415), (10, 1975532), (13, 1519640), (20, 987766), (26, 759820), (40, 493883), (52, 379910), (65, 303928), (104, 189955), (130, 151964), (260, 75982), (520, 37991)]