78747620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 196804608

約数和(自身を除く): 118056988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 103, 127, 140, 172, 206, 215, 254, 301, 412, 430, 508, 515, 602, 635, 721, 860, 889, 1030, 1204, 1270, 1442, 1505, 1778, 2060, 2540, 2884, 3010, 3556, 3605, 4429, 4445, 5461, 6020, 7210, 8858, 8890, 10922, 13081, 14420, 17716, 17780, 21844, 22145, 26162, 27305, 31003, 38227, 44290, 52324, 54610, 62006, 65405, 76454, 88580, 91567, 109220, 124012, 130810, 152908, 155015, 183134, 191135, 261620, 310030, 366268, 382270, 457835, 562483, 620060, 764540, 915670, 1124966, 1831340, 2249932, 2812415, 3937381, 5624830, 7874762, 11249660, 15749524, 19686905, 39373810, 78747620]

約数ペア:

[(1, 78747620), (2, 39373810), (4, 19686905), (5, 15749524), (7, 11249660), (10, 7874762), (14, 5624830), (20, 3937381), (28, 2812415), (35, 2249932), (43, 1831340), (70, 1124966), (86, 915670), (103, 764540), (127, 620060), (140, 562483), (172, 457835), (206, 382270), (215, 366268), (254, 310030), (301, 261620), (412, 191135), (430, 183134), (508, 155015), (515, 152908), (602, 130810), (635, 124012), (721, 109220), (860, 91567), (889, 88580), (1030, 76454), (1204, 65405), (1270, 62006), (1442, 54610), (1505, 52324), (1778, 44290), (2060, 38227), (2540, 31003), (2884, 27305), (3010, 26162), (3556, 22145), (3605, 21844), (4429, 17780), (4445, 17716), (5461, 14420), (6020, 13081), (7210, 10922), (8858, 8890)]