216789345

素因数分解:

$3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{739}}^1$

素因数の和:847

約数の個数: 64

約数和(自身を含む): 402796800

約数和(自身を除く): 186007455

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 53, 123, 135, 159, 205, 265, 369, 477, 615, 739, 795, 1107, 1431, 1845, 2173, 2217, 2385, 3695, 5535, 6519, 6651, 7155, 10865, 11085, 19557, 19953, 30299, 32595, 33255, 39167, 58671, 90897, 97785, 99765, 117501, 151495, 195835, 272691, 293355, 352503, 454485, 587505, 818073, 1057509, 1363455, 1605847, 1762515, 4090365, 4817541, 5287545, 8029235, 14452623, 24087705, 43357869, 72263115, 216789345]

約数ペア:

[(1, 216789345), (3, 72263115), (5, 43357869), (9, 24087705), (15, 14452623), (27, 8029235), (41, 5287545), (45, 4817541), (53, 4090365), (123, 1762515), (135, 1605847), (159, 1363455), (205, 1057509), (265, 818073), (369, 587505), (477, 454485), (615, 352503), (739, 293355), (795, 272691), (1107, 195835), (1431, 151495), (1845, 117501), (2173, 99765), (2217, 97785), (2385, 90897), (3695, 58671), (5535, 39167), (6519, 33255), (6651, 32595), (7155, 30299), (10865, 19953), (11085, 19557)]