128978992

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{424273}}^1$

素因数の和:424300

約数の個数: 20

約数和(自身を含む): 263049880

約数和(自身を除く): 134070888

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 424273, 848546, 1697092, 3394184, 6788368, 8061187, 16122374, 32244748, 64489496, 128978992]

約数ペア:

[(1, 128978992), (2, 64489496), (4, 32244748), (8, 16122374), (16, 8061187), (19, 6788368), (38, 3394184), (76, 1697092), (152, 848546), (304, 424273)]