1305462680

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{366703}}^1$

素因数の和:366803

約数の個数: 32

約数和(自身を含む): 2970302400

約数和(自身を除く): 1664839720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 366703, 733406, 1466812, 1833515, 2933624, 3667030, 7334060, 14668120, 32636567, 65273134, 130546268, 163182835, 261092536, 326365670, 652731340, 1305462680]

約数ペア:

[(1, 1305462680), (2, 652731340), (4, 326365670), (5, 261092536), (8, 163182835), (10, 130546268), (20, 65273134), (40, 32636567), (89, 14668120), (178, 7334060), (356, 3667030), (445, 2933624), (712, 1833515), (890, 1466812), (1780, 733406), (3560, 366703)]