81138540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3167}}^1$

素因数の和:3247

約数の個数: 96

約数和(自身を含む): 263983104

約数和(自身を除く): 182844564

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 61, 70, 84, 105, 122, 140, 183, 210, 244, 305, 366, 420, 427, 610, 732, 854, 915, 1220, 1281, 1708, 1830, 2135, 2562, 3167, 3660, 4270, 5124, 6334, 6405, 8540, 9501, 12668, 12810, 15835, 19002, 22169, 25620, 31670, 38004, 44338, 47505, 63340, 66507, 88676, 95010, 110845, 133014, 190020, 193187, 221690, 266028, 332535, 386374, 443380, 579561, 665070, 772748, 965935, 1159122, 1330140, 1352309, 1931870, 2318244, 2704618, 2897805, 3863740, 4056927, 5409236, 5795610, 6761545, 8113854, 11591220, 13523090, 16227708, 20284635, 27046180, 40569270, 81138540]

約数ペア:

[(1, 81138540), (2, 40569270), (3, 27046180), (4, 20284635), (5, 16227708), (6, 13523090), (7, 11591220), (10, 8113854), (12, 6761545), (14, 5795610), (15, 5409236), (20, 4056927), (21, 3863740), (28, 2897805), (30, 2704618), (35, 2318244), (42, 1931870), (60, 1352309), (61, 1330140), (70, 1159122), (84, 965935), (105, 772748), (122, 665070), (140, 579561), (183, 443380), (210, 386374), (244, 332535), (305, 266028), (366, 221690), (420, 193187), (427, 190020), (610, 133014), (732, 110845), (854, 95010), (915, 88676), (1220, 66507), (1281, 63340), (1708, 47505), (1830, 44338), (2135, 38004), (2562, 31670), (3167, 25620), (3660, 22169), (4270, 19002), (5124, 15835), (6334, 12810), (6405, 12668), (8540, 9501)]