20554680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1663}}^1$

素因数の和:1780

約数の個数: 64

約数和(自身を含む): 62300160

約数和(自身を除く): 41745480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 103, 120, 206, 309, 412, 515, 618, 824, 1030, 1236, 1545, 1663, 2060, 2472, 3090, 3326, 4120, 4989, 6180, 6652, 8315, 9978, 12360, 13304, 16630, 19956, 24945, 33260, 39912, 49890, 66520, 99780, 171289, 199560, 342578, 513867, 685156, 856445, 1027734, 1370312, 1712890, 2055468, 2569335, 3425780, 4110936, 5138670, 6851560, 10277340, 20554680]

約数ペア:

[(1, 20554680), (2, 10277340), (3, 6851560), (4, 5138670), (5, 4110936), (6, 3425780), (8, 2569335), (10, 2055468), (12, 1712890), (15, 1370312), (20, 1027734), (24, 856445), (30, 685156), (40, 513867), (60, 342578), (103, 199560), (120, 171289), (206, 99780), (309, 66520), (412, 49890), (515, 39912), (618, 33260), (824, 24945), (1030, 19956), (1236, 16630), (1545, 13304), (1663, 12360), (2060, 9978), (2472, 8315), (3090, 6652), (3326, 6180), (4120, 4989)]