28928720

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{839}}^1$

素因数の和:1283

約数の個数: 40

約数和(自身を含む): 67495680

約数和(自身を除く): 38566960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 839, 862, 1678, 1724, 2155, 3356, 3448, 4195, 4310, 6712, 6896, 8390, 8620, 13424, 16780, 17240, 33560, 34480, 67120, 361609, 723218, 1446436, 1808045, 2892872, 3616090, 5785744, 7232180, 14464360, 28928720]

約数ペア:

[(1, 28928720), (2, 14464360), (4, 7232180), (5, 5785744), (8, 3616090), (10, 2892872), (16, 1808045), (20, 1446436), (40, 723218), (80, 361609), (431, 67120), (839, 34480), (862, 33560), (1678, 17240), (1724, 16780), (2155, 13424), (3356, 8620), (3448, 8390), (4195, 6896), (4310, 6712)]