208519984

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{2441}}^1$

素因数の和:2749

約数の個数: 40

約数和(自身を含む): 426959280

約数和(自身を除く): 218439296

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 281, 304, 562, 1124, 2248, 2441, 4496, 4882, 5339, 9764, 10678, 19528, 21356, 39056, 42712, 46379, 85424, 92758, 185516, 371032, 685921, 742064, 1371842, 2743684, 5487368, 10974736, 13032499, 26064998, 52129996, 104259992, 208519984]

約数ペア:

[(1, 208519984), (2, 104259992), (4, 52129996), (8, 26064998), (16, 13032499), (19, 10974736), (38, 5487368), (76, 2743684), (152, 1371842), (281, 742064), (304, 685921), (562, 371032), (1124, 185516), (2248, 92758), (2441, 85424), (4496, 46379), (4882, 42712), (5339, 39056), (9764, 21356), (10678, 19528)]