338780680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1209931}}^1$

素因数の和:1209949

約数の個数: 32

約数和(自身を含む): 871151040

約数和(自身を除く): 532370360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1209931, 2419862, 4839724, 6049655, 8469517, 9679448, 12099310, 16939034, 24198620, 33878068, 42347585, 48397240, 67756136, 84695170, 169390340, 338780680]

約数ペア:

[(1, 338780680), (2, 169390340), (4, 84695170), (5, 67756136), (7, 48397240), (8, 42347585), (10, 33878068), (14, 24198620), (20, 16939034), (28, 12099310), (35, 9679448), (40, 8469517), (56, 6049655), (70, 4839724), (140, 2419862), (280, 1209931)]