20216040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12959}}^1$

素因数の和:12986

約数の個数: 64

約数和(自身を含む): 65318400

約数和(自身を除く): 45102360

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, 12959, 25918, 38877, 51836, 64795, 77754, 103672, 129590, 155508, 168467, 194385, 259180, 311016, 336934, 388770, 505401, 518360, 673868, 777540, 842335, 1010802, 1347736, 1555080, 1684670, 2021604, 2527005, 3369340, 4043208, 5054010, 6738680, 10108020, 20216040]

約数ペア:

[(1, 20216040), (2, 10108020), (3, 6738680), (4, 5054010), (5, 4043208), (6, 3369340), (8, 2527005), (10, 2021604), (12, 1684670), (13, 1555080), (15, 1347736), (20, 1010802), (24, 842335), (26, 777540), (30, 673868), (39, 518360), (40, 505401), (52, 388770), (60, 336934), (65, 311016), (78, 259180), (104, 194385), (120, 168467), (130, 155508), (156, 129590), (195, 103672), (260, 77754), (312, 64795), (390, 51836), (520, 38877), (780, 25918), (1560, 12959)]