20540625

素因数分解:

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

素因数の和:348

約数の個数: 48

約数和(自身を含む): 39247488

約数和(自身を除く): 18706863

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 125, 175, 313, 375, 525, 625, 875, 939, 1565, 1875, 2191, 2625, 3125, 4375, 4695, 6573, 7825, 9375, 10955, 13125, 21875, 23475, 32865, 39125, 54775, 65625, 117375, 164325, 195625, 273875, 586875, 821625, 978125, 1369375, 2934375, 4108125, 6846875, 20540625]

約数ペア:

[(1, 20540625), (3, 6846875), (5, 4108125), (7, 2934375), (15, 1369375), (21, 978125), (25, 821625), (35, 586875), (75, 273875), (105, 195625), (125, 164325), (175, 117375), (313, 65625), (375, 54775), (525, 39125), (625, 32865), (875, 23475), (939, 21875), (1565, 13125), (1875, 10955), (2191, 9375), (2625, 7825), (3125, 6573), (4375, 4695)]