20121856278

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{971}}^1\times {\mathrm{2591}}^1$

素因数の和:3641

約数の個数: 64

約数和(自身を含む): 42568187904

約数和(自身を除く): 22446331626

約数列:

[1, 2, 3, 6, 31, 43, 62, 86, 93, 129, 186, 258, 971, 1333, 1942, 2591, 2666, 2913, 3999, 5182, 5826, 7773, 7998, 15546, 30101, 41753, 60202, 80321, 83506, 90303, 111413, 125259, 160642, 180606, 222826, 240963, 250518, 334239, 481926, 668478, 1294343, 2515861, 2588686, 3453803, 3883029, 5031722, 6907606, 7547583, 7766058, 10361409, 15095166, 20722818, 77991691, 108182023, 155983382, 216364046, 233975073, 324546069, 467950146, 649092138, 3353642713, 6707285426, 10060928139, 20121856278]

約数ペア:

[(1, 20121856278), (2, 10060928139), (3, 6707285426), (6, 3353642713), (31, 649092138), (43, 467950146), (62, 324546069), (86, 233975073), (93, 216364046), (129, 155983382), (186, 108182023), (258, 77991691), (971, 20722818), (1333, 15095166), (1942, 10361409), (2591, 7766058), (2666, 7547583), (2913, 6907606), (3999, 5031722), (5182, 3883029), (5826, 3453803), (7773, 2588686), (7998, 2515861), (15546, 1294343), (30101, 668478), (41753, 481926), (60202, 334239), (80321, 250518), (83506, 240963), (90303, 222826), (111413, 180606), (125259, 160642)]