80198920

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1471}}^1$

素因数の和:1558

約数の個数: 64

約数和(自身を含む): 190771200

約数和(自身を除く): 110572280

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 47, 58, 94, 116, 145, 188, 232, 235, 290, 376, 470, 580, 940, 1160, 1363, 1471, 1880, 2726, 2942, 5452, 5884, 6815, 7355, 10904, 11768, 13630, 14710, 27260, 29420, 42659, 54520, 58840, 69137, 85318, 138274, 170636, 213295, 276548, 341272, 345685, 426590, 553096, 691370, 853180, 1382740, 1706360, 2004973, 2765480, 4009946, 8019892, 10024865, 16039784, 20049730, 40099460, 80198920]

約数ペア:

[(1, 80198920), (2, 40099460), (4, 20049730), (5, 16039784), (8, 10024865), (10, 8019892), (20, 4009946), (29, 2765480), (40, 2004973), (47, 1706360), (58, 1382740), (94, 853180), (116, 691370), (145, 553096), (188, 426590), (232, 345685), (235, 341272), (290, 276548), (376, 213295), (470, 170636), (580, 138274), (940, 85318), (1160, 69137), (1363, 58840), (1471, 54520), (1880, 42659), (2726, 29420), (2942, 27260), (5452, 14710), (5884, 13630), (6815, 11768), (7355, 10904)]