20425080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13093}}^1$

素因数の和:13120

約数の個数: 64

約数和(自身を含む): 65993760

約数和(自身を除く): 45568680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13093, 26186, 39279, 52372, 65465, 78558, 104744, 130930, 157116, 170209, 196395, 261860, 314232, 340418, 392790, 510627, 523720, 680836, 785580, 851045, 1021254, 1361672, 1571160, 1702090, 2042508, 2553135, 3404180, 4085016, 5106270, 6808360, 10212540, 20425080]

約数ペア:

[(1, 20425080), (2, 10212540), (3, 6808360), (4, 5106270), (5, 4085016), (6, 3404180), (8, 2553135), (10, 2042508), (12, 1702090), (13, 1571160), (15, 1361672), (20, 1021254), (24, 851045), (26, 785580), (30, 680836), (39, 523720), (40, 510627), (52, 392790), (60, 340418), (65, 314232), (78, 261860), (104, 196395), (120, 170209), (130, 157116), (156, 130930), (195, 104744), (260, 78558), (312, 65465), (390, 52372), (520, 39279), (780, 26186), (1560, 13093)]