213508720

素因数分解:

$2^4\times 5^1\times {\mathrm{839}}^1\times {\mathrm{3181}}^1$

素因数の和:4033

約数の個数: 40

約数和(自身を含む): 497155680

約数和(自身を除く): 283646960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 839, 1678, 3181, 3356, 4195, 6362, 6712, 8390, 12724, 13424, 15905, 16780, 25448, 31810, 33560, 50896, 63620, 67120, 127240, 254480, 2668859, 5337718, 10675436, 13344295, 21350872, 26688590, 42701744, 53377180, 106754360, 213508720]

約数ペア:

[(1, 213508720), (2, 106754360), (4, 53377180), (5, 42701744), (8, 26688590), (10, 21350872), (16, 13344295), (20, 10675436), (40, 5337718), (80, 2668859), (839, 254480), (1678, 127240), (3181, 67120), (3356, 63620), (4195, 50896), (6362, 33560), (6712, 31810), (8390, 25448), (12724, 16780), (13424, 15905)]