85806640

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{13577}}^1$

素因数の和:13669

約数の個数: 40

約数和(自身を含む): 202040640

約数和(自身を除く): 116234000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 13577, 27154, 54308, 67885, 108616, 135770, 217232, 271540, 543080, 1072583, 1086160, 2145166, 4290332, 5362915, 8580664, 10725830, 17161328, 21451660, 42903320, 85806640]

約数ペア:

[(1, 85806640), (2, 42903320), (4, 21451660), (5, 17161328), (8, 10725830), (10, 8580664), (16, 5362915), (20, 4290332), (40, 2145166), (79, 1086160), (80, 1072583), (158, 543080), (316, 271540), (395, 217232), (632, 135770), (790, 108616), (1264, 67885), (1580, 54308), (3160, 27154), (6320, 13577)]