1388391110

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{73421}}^1$

素因数の和:73520

約数の個数: 32

約数和(自身を含む): 2622046464

約数和(自身を除く): 1233655354

約数列:

[1, 2, 5, 10, 31, 61, 62, 122, 155, 305, 310, 610, 1891, 3782, 9455, 18910, 73421, 146842, 367105, 734210, 2276051, 4478681, 4552102, 8957362, 11380255, 22393405, 22760510, 44786810, 138839111, 277678222, 694195555, 1388391110]

約数ペア:

[(1, 1388391110), (2, 694195555), (5, 277678222), (10, 138839111), (31, 44786810), (61, 22760510), (62, 22393405), (122, 11380255), (155, 8957362), (305, 4552102), (310, 4478681), (610, 2276051), (1891, 734210), (3782, 367105), (9455, 146842), (18910, 73421)]