131998256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{277}}^1$

素因数の和:406

約数の個数: 80

約数和(自身を含む): 289564800

約数和(自身を除く): 157566544

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 52, 58, 79, 104, 116, 158, 208, 232, 277, 316, 377, 464, 554, 632, 754, 1027, 1108, 1264, 1508, 2054, 2216, 2291, 3016, 3601, 4108, 4432, 4582, 6032, 7202, 8033, 8216, 9164, 14404, 16066, 16432, 18328, 21883, 28808, 29783, 32132, 36656, 43766, 57616, 59566, 64264, 87532, 104429, 119132, 128528, 175064, 208858, 238264, 284479, 350128, 417716, 476528, 568958, 634607, 835432, 1137916, 1269214, 1670864, 2275832, 2538428, 4551664, 5076856, 8249891, 10153712, 16499782, 32999564, 65999128, 131998256]

約数ペア:

[(1, 131998256), (2, 65999128), (4, 32999564), (8, 16499782), (13, 10153712), (16, 8249891), (26, 5076856), (29, 4551664), (52, 2538428), (58, 2275832), (79, 1670864), (104, 1269214), (116, 1137916), (158, 835432), (208, 634607), (232, 568958), (277, 476528), (316, 417716), (377, 350128), (464, 284479), (554, 238264), (632, 208858), (754, 175064), (1027, 128528), (1108, 119132), (1264, 104429), (1508, 87532), (2054, 64264), (2216, 59566), (2291, 57616), (3016, 43766), (3601, 36656), (4108, 32132), (4432, 29783), (4582, 28808), (6032, 21883), (7202, 18328), (8033, 16432), (8216, 16066), (9164, 14404)]