80766440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{419}}^1$

素因数の和:570

約数の個数: 64

約数和(自身を含む): 187488000

約数和(自身を除く): 106721560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 79, 122, 158, 244, 305, 316, 395, 419, 488, 610, 632, 790, 838, 1220, 1580, 1676, 2095, 2440, 3160, 3352, 4190, 4819, 8380, 9638, 16760, 19276, 24095, 25559, 33101, 38552, 48190, 51118, 66202, 96380, 102236, 127795, 132404, 165505, 192760, 204472, 255590, 264808, 331010, 511180, 662020, 1022360, 1324040, 2019161, 4038322, 8076644, 10095805, 16153288, 20191610, 40383220, 80766440]

約数ペア:

[(1, 80766440), (2, 40383220), (4, 20191610), (5, 16153288), (8, 10095805), (10, 8076644), (20, 4038322), (40, 2019161), (61, 1324040), (79, 1022360), (122, 662020), (158, 511180), (244, 331010), (305, 264808), (316, 255590), (395, 204472), (419, 192760), (488, 165505), (610, 132404), (632, 127795), (790, 102236), (838, 96380), (1220, 66202), (1580, 51118), (1676, 48190), (2095, 38552), (2440, 33101), (3160, 25559), (3352, 24095), (4190, 19276), (4819, 16760), (8380, 9638)]