80414308

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{409}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 160720000

約数和(自身を除く): 80305692

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 199, 247, 398, 409, 494, 796, 818, 988, 1636, 2587, 3781, 5174, 5317, 7562, 7771, 10348, 10634, 15124, 15542, 21268, 31084, 49153, 81391, 98306, 101023, 162782, 196612, 202046, 325564, 404092, 1058083, 1546429, 2116166, 3092858, 4232332, 6185716, 20103577, 40207154, 80414308]

約数ペア:

[(1, 80414308), (2, 40207154), (4, 20103577), (13, 6185716), (19, 4232332), (26, 3092858), (38, 2116166), (52, 1546429), (76, 1058083), (199, 404092), (247, 325564), (398, 202046), (409, 196612), (494, 162782), (796, 101023), (818, 98306), (988, 81391), (1636, 49153), (2587, 31084), (3781, 21268), (5174, 15542), (5317, 15124), (7562, 10634), (7771, 10348)]