81368560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11177}}^1$

素因数の和:11210

約数の個数: 80

約数和(自身を含む): 232860096

約数和(自身を除く): 151491536

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 11177, 22354, 44708, 55885, 78239, 89416, 111770, 145301, 156478, 178832, 223540, 290602, 312956, 391195, 447080, 581204, 625912, 726505, 782390, 894160, 1017107, 1162408, 1251824, 1453010, 1564780, 2034214, 2324816, 2906020, 3129560, 4068428, 5085535, 5812040, 6259120, 8136856, 10171070, 11624080, 16273712, 20342140, 40684280, 81368560]

約数ペア:

[(1, 81368560), (2, 40684280), (4, 20342140), (5, 16273712), (7, 11624080), (8, 10171070), (10, 8136856), (13, 6259120), (14, 5812040), (16, 5085535), (20, 4068428), (26, 3129560), (28, 2906020), (35, 2324816), (40, 2034214), (52, 1564780), (56, 1453010), (65, 1251824), (70, 1162408), (80, 1017107), (91, 894160), (104, 782390), (112, 726505), (130, 625912), (140, 581204), (182, 447080), (208, 391195), (260, 312956), (280, 290602), (364, 223540), (455, 178832), (520, 156478), (560, 145301), (728, 111770), (910, 89416), (1040, 78239), (1456, 55885), (1820, 44708), (3640, 22354), (7280, 11177)]