18390645

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1$

素因数の和:536

約数の個数: 80

約数和(自身を含む): 40656000

約数和(自身を除く): 22265355

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 27, 35, 39, 45, 63, 65, 81, 91, 105, 117, 135, 189, 195, 273, 315, 351, 405, 455, 499, 567, 585, 819, 945, 1053, 1365, 1497, 1755, 2457, 2495, 2835, 3493, 4095, 4491, 5265, 6487, 7371, 7485, 10479, 12285, 13473, 17465, 19461, 22455, 31437, 32435, 36855, 40419, 45409, 52395, 58383, 67365, 94311, 97305, 136227, 157185, 175149, 202095, 227045, 282933, 291915, 408681, 471555, 525447, 681135, 875745, 1226043, 1414665, 2043405, 2627235, 3678129, 6130215, 18390645]

約数ペア:

[(1, 18390645), (3, 6130215), (5, 3678129), (7, 2627235), (9, 2043405), (13, 1414665), (15, 1226043), (21, 875745), (27, 681135), (35, 525447), (39, 471555), (45, 408681), (63, 291915), (65, 282933), (81, 227045), (91, 202095), (105, 175149), (117, 157185), (135, 136227), (189, 97305), (195, 94311), (273, 67365), (315, 58383), (351, 52395), (405, 45409), (455, 40419), (499, 36855), (567, 32435), (585, 31437), (819, 22455), (945, 19461), (1053, 17465), (1365, 13473), (1497, 12285), (1755, 10479), (2457, 7485), (2495, 7371), (2835, 6487), (3493, 5265), (4095, 4491)]