289330720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{258331}}^1$

素因数の和:258353

約数の個数: 48

約数和(自身を含む): 781195968

約数和(自身を除く): 491865248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 258331, 516662, 1033324, 1291655, 1808317, 2066648, 2583310, 3616634, 4133296, 5166620, 7233268, 8266592, 9041585, 10333240, 14466536, 18083170, 20666480, 28933072, 36166340, 41332960, 57866144, 72332680, 144665360, 289330720]

約数ペア:

[(1, 289330720), (2, 144665360), (4, 72332680), (5, 57866144), (7, 41332960), (8, 36166340), (10, 28933072), (14, 20666480), (16, 18083170), (20, 14466536), (28, 10333240), (32, 9041585), (35, 8266592), (40, 7233268), (56, 5166620), (70, 4133296), (80, 3616634), (112, 2583310), (140, 2066648), (160, 1808317), (224, 1291655), (280, 1033324), (560, 516662), (1120, 258331)]