20704440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{3671}}^1$

素因数の和:3732

約数の個数: 64

約数和(自身を含む): 63452160

約数和(自身を除く): 42747720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 94, 120, 141, 188, 235, 282, 376, 470, 564, 705, 940, 1128, 1410, 1880, 2820, 3671, 5640, 7342, 11013, 14684, 18355, 22026, 29368, 36710, 44052, 55065, 73420, 88104, 110130, 146840, 172537, 220260, 345074, 440520, 517611, 690148, 862685, 1035222, 1380296, 1725370, 2070444, 2588055, 3450740, 4140888, 5176110, 6901480, 10352220, 20704440]

約数ペア:

[(1, 20704440), (2, 10352220), (3, 6901480), (4, 5176110), (5, 4140888), (6, 3450740), (8, 2588055), (10, 2070444), (12, 1725370), (15, 1380296), (20, 1035222), (24, 862685), (30, 690148), (40, 517611), (47, 440520), (60, 345074), (94, 220260), (120, 172537), (141, 146840), (188, 110130), (235, 88104), (282, 73420), (376, 55065), (470, 44052), (564, 36710), (705, 29368), (940, 22026), (1128, 18355), (1410, 14684), (1880, 11013), (2820, 7342), (3671, 5640)]