51345980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:331

約数の個数: 96

約数和(自身を含む): 131712000

約数和(自身を除く): 80366020

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 97, 133, 140, 190, 194, 199, 266, 380, 388, 398, 485, 532, 665, 679, 796, 970, 995, 1330, 1358, 1393, 1843, 1940, 1990, 2660, 2716, 2786, 3395, 3686, 3781, 3980, 5572, 6790, 6965, 7372, 7562, 9215, 12901, 13580, 13930, 15124, 18430, 18905, 19303, 25802, 26467, 27860, 36860, 37810, 38606, 51604, 52934, 64505, 75620, 77212, 96515, 105868, 129010, 132335, 135121, 193030, 258020, 264670, 270242, 366757, 386060, 529340, 540484, 675605, 733514, 1351210, 1467028, 1833785, 2567299, 2702420, 3667570, 5134598, 7335140, 10269196, 12836495, 25672990, 51345980]

約数ペア:

[(1, 51345980), (2, 25672990), (4, 12836495), (5, 10269196), (7, 7335140), (10, 5134598), (14, 3667570), (19, 2702420), (20, 2567299), (28, 1833785), (35, 1467028), (38, 1351210), (70, 733514), (76, 675605), (95, 540484), (97, 529340), (133, 386060), (140, 366757), (190, 270242), (194, 264670), (199, 258020), (266, 193030), (380, 135121), (388, 132335), (398, 129010), (485, 105868), (532, 96515), (665, 77212), (679, 75620), (796, 64505), (970, 52934), (995, 51604), (1330, 38606), (1358, 37810), (1393, 36860), (1843, 27860), (1940, 26467), (1990, 25802), (2660, 19303), (2716, 18905), (2786, 18430), (3395, 15124), (3686, 13930), (3781, 13580), (3980, 12901), (5572, 9215), (6790, 7562), (6965, 7372)]