209214980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{7121}}^1$

素因数の和:7256

約数の個数: 48

約数和(自身を含む): 477401904

約数和(自身を除く): 268186924

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 226, 260, 452, 565, 1130, 1469, 2260, 2938, 5876, 7121, 7345, 14242, 14690, 28484, 29380, 35605, 71210, 92573, 142420, 185146, 370292, 462865, 804673, 925730, 1609346, 1851460, 3218692, 4023365, 8046730, 10460749, 16093460, 20921498, 41842996, 52303745, 104607490, 209214980]

約数ペア:

[(1, 209214980), (2, 104607490), (4, 52303745), (5, 41842996), (10, 20921498), (13, 16093460), (20, 10460749), (26, 8046730), (52, 4023365), (65, 3218692), (113, 1851460), (130, 1609346), (226, 925730), (260, 804673), (452, 462865), (565, 370292), (1130, 185146), (1469, 142420), (2260, 92573), (2938, 71210), (5876, 35605), (7121, 29380), (7345, 28484), (14242, 14690)]