212845120

素因数分解:

$2^6\times 5^1\times {\mathrm{665141}}^1$

素因数の和:665158

約数の個数: 28

約数和(自身を含む): 506838204

約数和(自身を除く): 293993084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 665141, 1330282, 2660564, 3325705, 5321128, 6651410, 10642256, 13302820, 21284512, 26605640, 42569024, 53211280, 106422560, 212845120]

約数ペア:

[(1, 212845120), (2, 106422560), (4, 53211280), (5, 42569024), (8, 26605640), (10, 21284512), (16, 13302820), (20, 10642256), (32, 6651410), (40, 5321128), (64, 3325705), (80, 2660564), (160, 1330282), (320, 665141)]