72321800

素因数分解:

$2^3\times 5^2\times {\mathrm{431}}^1\times {\mathrm{839}}^1$

素因数の和:1286

約数の個数: 48

約数和(自身を含む): 168739200

約数和(自身を除く): 96417400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 431, 839, 862, 1678, 1724, 2155, 3356, 3448, 4195, 4310, 6712, 8390, 8620, 10775, 16780, 17240, 20975, 21550, 33560, 41950, 43100, 83900, 86200, 167800, 361609, 723218, 1446436, 1808045, 2892872, 3616090, 7232180, 9040225, 14464360, 18080450, 36160900, 72321800]

約数ペア:

[(1, 72321800), (2, 36160900), (4, 18080450), (5, 14464360), (8, 9040225), (10, 7232180), (20, 3616090), (25, 2892872), (40, 1808045), (50, 1446436), (100, 723218), (200, 361609), (431, 167800), (839, 86200), (862, 83900), (1678, 43100), (1724, 41950), (2155, 33560), (3356, 21550), (3448, 20975), (4195, 17240), (4310, 16780), (6712, 10775), (8390, 8620)]