20122425

素因数分解:

$3^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{523}}^1$

素因数の和:564

約数の個数: 60

約数和(自身を含む): 39310480

約数和(自身を除く): 19188055

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 81, 95, 135, 171, 225, 285, 405, 475, 513, 523, 675, 855, 1425, 1539, 1569, 2025, 2565, 2615, 4275, 4707, 7695, 7845, 9937, 12825, 13075, 14121, 23535, 29811, 38475, 39225, 42363, 49685, 70605, 89433, 117675, 149055, 211815, 248425, 268299, 353025, 447165, 745275, 804897, 1059075, 1341495, 2235825, 4024485, 6707475, 20122425]

約数ペア:

[(1, 20122425), (3, 6707475), (5, 4024485), (9, 2235825), (15, 1341495), (19, 1059075), (25, 804897), (27, 745275), (45, 447165), (57, 353025), (75, 268299), (81, 248425), (95, 211815), (135, 149055), (171, 117675), (225, 89433), (285, 70605), (405, 49685), (475, 42363), (513, 39225), (523, 38475), (675, 29811), (855, 23535), (1425, 14121), (1539, 13075), (1569, 12825), (2025, 9937), (2565, 7845), (2615, 7695), (4275, 4707)]