289794620

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{140677}}^1$

素因数の和:140789

約数の個数: 24

約数和(自身を含む): 614481504

約数和(自身を除く): 324686884

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 140677, 281354, 562708, 703385, 1406770, 2813540, 14489731, 28979462, 57958924, 72448655, 144897310, 289794620]

約数ペア:

[(1, 289794620), (2, 144897310), (4, 72448655), (5, 57958924), (10, 28979462), (20, 14489731), (103, 2813540), (206, 1406770), (412, 703385), (515, 562708), (1030, 281354), (2060, 140677)]