139332520

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{31957}}^1$

素因数の和:32077

約数の個数: 32

約数和(自身を含む): 316384200

約数和(自身を除く): 177051680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 31957, 63914, 127828, 159785, 255656, 319570, 639140, 1278280, 3483313, 6966626, 13933252, 17416565, 27866504, 34833130, 69666260, 139332520]

約数ペア:

[(1, 139332520), (2, 69666260), (4, 34833130), (5, 27866504), (8, 17416565), (10, 13933252), (20, 6966626), (40, 3483313), (109, 1278280), (218, 639140), (436, 319570), (545, 255656), (872, 159785), (1090, 127828), (2180, 63914), (4360, 31957)]