78928020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{587}}^1$

素因数の和:691

約数の個数: 120

約数和(自身を含む): 251010144

約数和(自身を除く): 172082124

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 83, 90, 108, 135, 162, 166, 180, 249, 270, 324, 332, 405, 415, 498, 540, 587, 747, 810, 830, 996, 1174, 1245, 1494, 1620, 1660, 1761, 2241, 2348, 2490, 2935, 2988, 3522, 3735, 4482, 4980, 5283, 5870, 6723, 7044, 7470, 8805, 8964, 10566, 11205, 11740, 13446, 14940, 15849, 17610, 21132, 22410, 26415, 26892, 31698, 33615, 35220, 44820, 47547, 48721, 52830, 63396, 67230, 79245, 95094, 97442, 105660, 134460, 146163, 158490, 190188, 194884, 237735, 243605, 292326, 316980, 438489, 475470, 487210, 584652, 730815, 876978, 950940, 974420, 1315467, 1461630, 1753956, 2192445, 2630934, 2923260, 3946401, 4384890, 5261868, 6577335, 7892802, 8769780, 13154670, 15785604, 19732005, 26309340, 39464010, 78928020]

約数ペア:

[(1, 78928020), (2, 39464010), (3, 26309340), (4, 19732005), (5, 15785604), (6, 13154670), (9, 8769780), (10, 7892802), (12, 6577335), (15, 5261868), (18, 4384890), (20, 3946401), (27, 2923260), (30, 2630934), (36, 2192445), (45, 1753956), (54, 1461630), (60, 1315467), (81, 974420), (83, 950940), (90, 876978), (108, 730815), (135, 584652), (162, 487210), (166, 475470), (180, 438489), (249, 316980), (270, 292326), (324, 243605), (332, 237735), (405, 194884), (415, 190188), (498, 158490), (540, 146163), (587, 134460), (747, 105660), (810, 97442), (830, 95094), (996, 79245), (1174, 67230), (1245, 63396), (1494, 52830), (1620, 48721), (1660, 47547), (1761, 44820), (2241, 35220), (2348, 33615), (2490, 31698), (2935, 26892), (2988, 26415), (3522, 22410), (3735, 21132), (4482, 17610), (4980, 15849), (5283, 14940), (5870, 13446), (6723, 11740), (7044, 11205), (7470, 10566), (8805, 8964)]