28756875

素因数分解:

$3^1\times 5^4\times 7^2\times {\mathrm{313}}^1$

素因数の和:350

約数の個数: 60

約数和(自身を含む): 55913352

約数和(自身を除く): 27156477

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 125, 147, 175, 245, 313, 375, 525, 625, 735, 875, 939, 1225, 1565, 1875, 2191, 2625, 3675, 4375, 4695, 6125, 6573, 7825, 10955, 13125, 15337, 18375, 23475, 30625, 32865, 39125, 46011, 54775, 76685, 91875, 117375, 164325, 195625, 230055, 273875, 383425, 586875, 821625, 1150275, 1369375, 1917125, 4108125, 5751375, 9585625, 28756875]

約数ペア:

[(1, 28756875), (3, 9585625), (5, 5751375), (7, 4108125), (15, 1917125), (21, 1369375), (25, 1150275), (35, 821625), (49, 586875), (75, 383425), (105, 273875), (125, 230055), (147, 195625), (175, 164325), (245, 117375), (313, 91875), (375, 76685), (525, 54775), (625, 46011), (735, 39125), (875, 32865), (939, 30625), (1225, 23475), (1565, 18375), (1875, 15337), (2191, 13125), (2625, 10955), (3675, 7825), (4375, 6573), (4695, 6125)]