81815656

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{7789}}^1$

素因数の和:7909

約数の個数: 32

約数和(自身を含む): 166861800

約数和(自身を除く): 85046144

約数列:

[1, 2, 4, 8, 13, 26, 52, 101, 104, 202, 404, 808, 1313, 2626, 5252, 7789, 10504, 15578, 31156, 62312, 101257, 202514, 405028, 786689, 810056, 1573378, 3146756, 6293512, 10226957, 20453914, 40907828, 81815656]

約数ペア:

[(1, 81815656), (2, 40907828), (4, 20453914), (8, 10226957), (13, 6293512), (26, 3146756), (52, 1573378), (101, 810056), (104, 786689), (202, 405028), (404, 202514), (808, 101257), (1313, 62312), (2626, 31156), (5252, 15578), (7789, 10504)]