139178840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{112241}}^1$

素因数の和:112283

約数の個数: 32

約数和(自身を含む): 323256960

約数和(自身を除く): 184078120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 112241, 224482, 448964, 561205, 897928, 1122410, 2244820, 3479471, 4489640, 6958942, 13917884, 17397355, 27835768, 34794710, 69589420, 139178840]

約数ペア:

[(1, 139178840), (2, 69589420), (4, 34794710), (5, 27835768), (8, 17397355), (10, 13917884), (20, 6958942), (31, 4489640), (40, 3479471), (62, 2244820), (124, 1122410), (155, 897928), (248, 561205), (310, 448964), (620, 224482), (1240, 112241)]