40078125

素因数分解:

$3^3\times 5^7\times {\mathrm{19}}^1$

素因数の和:63

約数の個数: 64

約数和(自身を含む): 78124800

約数和(自身を除く): 38046675

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 95, 125, 135, 171, 225, 285, 375, 475, 513, 625, 675, 855, 1125, 1425, 1875, 2375, 2565, 3125, 3375, 4275, 5625, 7125, 9375, 11875, 12825, 15625, 16875, 21375, 28125, 35625, 46875, 59375, 64125, 78125, 84375, 106875, 140625, 178125, 234375, 296875, 320625, 421875, 534375, 703125, 890625, 1484375, 1603125, 2109375, 2671875, 4453125, 8015625, 13359375, 40078125]

約数ペア:

[(1, 40078125), (3, 13359375), (5, 8015625), (9, 4453125), (15, 2671875), (19, 2109375), (25, 1603125), (27, 1484375), (45, 890625), (57, 703125), (75, 534375), (95, 421875), (125, 320625), (135, 296875), (171, 234375), (225, 178125), (285, 140625), (375, 106875), (475, 84375), (513, 78125), (625, 64125), (675, 59375), (855, 46875), (1125, 35625), (1425, 28125), (1875, 21375), (2375, 16875), (2565, 15625), (3125, 12825), (3375, 11875), (4275, 9375), (5625, 7125)]