1388597960

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{104879}}^1$

素因数の和:105221

約数の個数: 32

約数和(自身を含む): 3133814400

約数和(自身を除く): 1745216440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 6620, 13240, 104879, 209758, 419516, 524395, 839032, 1048790, 2097580, 4195160, 34714949, 69429898, 138859796, 173574745, 277719592, 347149490, 694298980, 1388597960]

約数ペア:

[(1, 1388597960), (2, 694298980), (4, 347149490), (5, 277719592), (8, 173574745), (10, 138859796), (20, 69429898), (40, 34714949), (331, 4195160), (662, 2097580), (1324, 1048790), (1655, 839032), (2648, 524395), (3310, 419516), (6620, 209758), (13240, 104879)]