278601280

素因数分解:

$2^6\times 5^1\times {\mathrm{870629}}^1$

素因数の和:870646

約数の個数: 28

約数和(自身を含む): 663420060

約数和(自身を除く): 384818780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 870629, 1741258, 3482516, 4353145, 6965032, 8706290, 13930064, 17412580, 27860128, 34825160, 55720256, 69650320, 139300640, 278601280]

約数ペア:

[(1, 278601280), (2, 139300640), (4, 69650320), (5, 55720256), (8, 34825160), (10, 27860128), (16, 17412580), (20, 13930064), (32, 8706290), (40, 6965032), (64, 4353145), (80, 3482516), (160, 1741258), (320, 870629)]