15888971920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{52529}}^1$

素因数の和:52760

約数の個数: 80

約数和(自身を含む): 39082320000

約数和(自身を除く): 23193348080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 199, 304, 380, 398, 760, 796, 995, 1520, 1592, 1990, 3184, 3781, 3980, 7562, 7960, 15124, 15920, 18905, 30248, 37810, 52529, 60496, 75620, 105058, 151240, 210116, 262645, 302480, 420232, 525290, 840464, 998051, 1050580, 1996102, 2101160, 3992204, 4202320, 4990255, 7984408, 9980510, 10453271, 15968816, 19961020, 20906542, 39922040, 41813084, 52266355, 79844080, 83626168, 104532710, 167252336, 198612149, 209065420, 397224298, 418130840, 794448596, 836261680, 993060745, 1588897192, 1986121490, 3177794384, 3972242980, 7944485960, 15888971920]

約数ペア:

[(1, 15888971920), (2, 7944485960), (4, 3972242980), (5, 3177794384), (8, 1986121490), (10, 1588897192), (16, 993060745), (19, 836261680), (20, 794448596), (38, 418130840), (40, 397224298), (76, 209065420), (80, 198612149), (95, 167252336), (152, 104532710), (190, 83626168), (199, 79844080), (304, 52266355), (380, 41813084), (398, 39922040), (760, 20906542), (796, 19961020), (995, 15968816), (1520, 10453271), (1592, 9980510), (1990, 7984408), (3184, 4990255), (3781, 4202320), (3980, 3992204), (7562, 2101160), (7960, 1996102), (15124, 1050580), (15920, 998051), (18905, 840464), (30248, 525290), (37810, 420232), (52529, 302480), (60496, 262645), (75620, 210116), (105058, 151240)]