20228000

素因数分解:

$2^5\times 5^3\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:427

約数の個数: 96

約数和(自身を含む): 53660880

約数和(自身を除く): 33432880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 125, 130, 160, 200, 208, 250, 260, 325, 389, 400, 416, 500, 520, 650, 778, 800, 1000, 1040, 1300, 1556, 1625, 1945, 2000, 2080, 2600, 3112, 3250, 3890, 4000, 5057, 5200, 6224, 6500, 7780, 9725, 10114, 10400, 12448, 13000, 15560, 19450, 20228, 25285, 26000, 31120, 38900, 40456, 48625, 50570, 52000, 62240, 77800, 80912, 97250, 101140, 126425, 155600, 161824, 194500, 202280, 252850, 311200, 389000, 404560, 505700, 632125, 778000, 809120, 1011400, 1264250, 1556000, 2022800, 2528500, 4045600, 5057000, 10114000, 20228000]

約数ペア:

[(1, 20228000), (2, 10114000), (4, 5057000), (5, 4045600), (8, 2528500), (10, 2022800), (13, 1556000), (16, 1264250), (20, 1011400), (25, 809120), (26, 778000), (32, 632125), (40, 505700), (50, 404560), (52, 389000), (65, 311200), (80, 252850), (100, 202280), (104, 194500), (125, 161824), (130, 155600), (160, 126425), (200, 101140), (208, 97250), (250, 80912), (260, 77800), (325, 62240), (389, 52000), (400, 50570), (416, 48625), (500, 40456), (520, 38900), (650, 31120), (778, 26000), (800, 25285), (1000, 20228), (1040, 19450), (1300, 15560), (1556, 13000), (1625, 12448), (1945, 10400), (2000, 10114), (2080, 9725), (2600, 7780), (3112, 6500), (3250, 6224), (3890, 5200), (4000, 5057)]