890663620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{578353}}^1$

素因数の和:578380

約数の個数: 48

約数和(自身を含む): 2331923328

約数和(自身を除く): 1441259708

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 578353, 1156706, 2313412, 2891765, 4048471, 5783530, 6361883, 8096942, 11567060, 12723766, 16193884, 20242355, 25447532, 31809415, 40484710, 44533181, 63618830, 80969420, 89066362, 127237660, 178132724, 222665905, 445331810, 890663620]

約数ペア:

[(1, 890663620), (2, 445331810), (4, 222665905), (5, 178132724), (7, 127237660), (10, 89066362), (11, 80969420), (14, 63618830), (20, 44533181), (22, 40484710), (28, 31809415), (35, 25447532), (44, 20242355), (55, 16193884), (70, 12723766), (77, 11567060), (110, 8096942), (140, 6361883), (154, 5783530), (220, 4048471), (308, 2891765), (385, 2313412), (770, 1156706), (1540, 578353)]