20148075

素因数分解:

$3^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1571}}^1$

素因数の和:1609

約数の個数: 48

約数和(自身を含む): 38985600

約数和(自身を除く): 18837525

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 95, 135, 171, 225, 285, 475, 513, 675, 855, 1425, 1571, 2565, 4275, 4713, 7855, 12825, 14139, 23565, 29849, 39275, 42417, 70695, 89547, 117825, 149245, 212085, 268641, 353475, 447735, 746225, 805923, 1060425, 1343205, 2238675, 4029615, 6716025, 20148075]

約数ペア:

[(1, 20148075), (3, 6716025), (5, 4029615), (9, 2238675), (15, 1343205), (19, 1060425), (25, 805923), (27, 746225), (45, 447735), (57, 353475), (75, 268641), (95, 212085), (135, 149245), (171, 117825), (225, 89547), (285, 70695), (475, 42417), (513, 39275), (675, 29849), (855, 23565), (1425, 14139), (1571, 12825), (2565, 7855), (4275, 4713)]