20640024

素因数分解:

$2^3\times 3^2\times {\mathrm{439}}^1\times {\mathrm{653}}^1$

素因数の和:1104

約数の個数: 48

約数和(自身を含む): 56113200

約数和(自身を除く): 35473176

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 439, 653, 878, 1306, 1317, 1756, 1959, 2612, 2634, 3512, 3918, 3951, 5224, 5268, 5877, 7836, 7902, 10536, 11754, 15672, 15804, 23508, 31608, 47016, 286667, 573334, 860001, 1146668, 1720002, 2293336, 2580003, 3440004, 5160006, 6880008, 10320012, 20640024]

約数ペア:

[(1, 20640024), (2, 10320012), (3, 6880008), (4, 5160006), (6, 3440004), (8, 2580003), (9, 2293336), (12, 1720002), (18, 1146668), (24, 860001), (36, 573334), (72, 286667), (439, 47016), (653, 31608), (878, 23508), (1306, 15804), (1317, 15672), (1756, 11754), (1959, 10536), (2612, 7902), (2634, 7836), (3512, 5877), (3918, 5268), (3951, 5224)]