40771120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:422

約数の個数: 80

約数和(自身を含む): 103118400

約数和(自身を除く): 62347280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 197, 199, 208, 260, 394, 398, 520, 788, 796, 985, 995, 1040, 1576, 1592, 1970, 1990, 2561, 2587, 3152, 3184, 3940, 3980, 5122, 5174, 7880, 7960, 10244, 10348, 12805, 12935, 15760, 15920, 20488, 20696, 25610, 25870, 39203, 40976, 41392, 51220, 51740, 78406, 102440, 103480, 156812, 196015, 204880, 206960, 313624, 392030, 509639, 627248, 784060, 1019278, 1568120, 2038556, 2548195, 3136240, 4077112, 5096390, 8154224, 10192780, 20385560, 40771120]

約数ペア:

[(1, 40771120), (2, 20385560), (4, 10192780), (5, 8154224), (8, 5096390), (10, 4077112), (13, 3136240), (16, 2548195), (20, 2038556), (26, 1568120), (40, 1019278), (52, 784060), (65, 627248), (80, 509639), (104, 392030), (130, 313624), (197, 206960), (199, 204880), (208, 196015), (260, 156812), (394, 103480), (398, 102440), (520, 78406), (788, 51740), (796, 51220), (985, 41392), (995, 40976), (1040, 39203), (1576, 25870), (1592, 25610), (1970, 20696), (1990, 20488), (2561, 15920), (2587, 15760), (3152, 12935), (3184, 12805), (3940, 10348), (3980, 10244), (5122, 7960), (5174, 7880)]