209106420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{81049}}^1$

素因数の和:81104

約数の個数: 48

約数和(自身を含む): 599121600

約数和(自身を除く): 390015180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 81049, 162098, 243147, 324196, 405245, 486294, 810490, 972588, 1215735, 1620980, 2431470, 3485107, 4862940, 6970214, 10455321, 13940428, 17425535, 20910642, 34851070, 41821284, 52276605, 69702140, 104553210, 209106420]

約数ペア:

[(1, 209106420), (2, 104553210), (3, 69702140), (4, 52276605), (5, 41821284), (6, 34851070), (10, 20910642), (12, 17425535), (15, 13940428), (20, 10455321), (30, 6970214), (43, 4862940), (60, 3485107), (86, 2431470), (129, 1620980), (172, 1215735), (215, 972588), (258, 810490), (430, 486294), (516, 405245), (645, 324196), (860, 243147), (1290, 162098), (2580, 81049)]