20871630

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17839}}^1$

素因数の和:17865

約数の個数: 48

約数和(自身を含む): 58443840

約数和(自身を除く): 37572210

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 17839, 35678, 53517, 89195, 107034, 160551, 178390, 231907, 267585, 321102, 463814, 535170, 695721, 802755, 1159535, 1391442, 1605510, 2087163, 2319070, 3478605, 4174326, 6957210, 10435815, 20871630]

約数ペア:

[(1, 20871630), (2, 10435815), (3, 6957210), (5, 4174326), (6, 3478605), (9, 2319070), (10, 2087163), (13, 1605510), (15, 1391442), (18, 1159535), (26, 802755), (30, 695721), (39, 535170), (45, 463814), (65, 321102), (78, 267585), (90, 231907), (117, 178390), (130, 160551), (195, 107034), (234, 89195), (390, 53517), (585, 35678), (1170, 17839)]