621660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{797}}^1$

素因数の和:822

約数の個数: 48

約数和(自身を含む): 1876896

約数和(自身を除く): 1255236

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 797, 1594, 2391, 3188, 3985, 4782, 7970, 9564, 10361, 11955, 15940, 20722, 23910, 31083, 41444, 47820, 51805, 62166, 103610, 124332, 155415, 207220, 310830, 621660]

約数ペア:

[(1, 621660), (2, 310830), (3, 207220), (4, 155415), (5, 124332), (6, 103610), (10, 62166), (12, 51805), (13, 47820), (15, 41444), (20, 31083), (26, 23910), (30, 20722), (39, 15940), (52, 11955), (60, 10361), (65, 9564), (78, 7970), (130, 4782), (156, 3985), (195, 3188), (260, 2391), (390, 1594), (780, 797)]