66441280

素因数分解:

$2^6\times 5^1\times {\mathrm{207629}}^1$

素因数の和:207646

約数の個数: 28

約数和(自身を含む): 158214060

約数和(自身を除く): 91772780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 207629, 415258, 830516, 1038145, 1661032, 2076290, 3322064, 4152580, 6644128, 8305160, 13288256, 16610320, 33220640, 66441280]

約数ペア:

[(1, 66441280), (2, 33220640), (4, 16610320), (5, 13288256), (8, 8305160), (10, 6644128), (16, 4152580), (20, 3322064), (32, 2076290), (40, 1661032), (64, 1038145), (80, 830516), (160, 415258), (320, 207629)]