28712925

素因数分解:

$3^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{3449}}^1$

素因数の和:3502

約数の個数: 36

約数和(自身を含む): 52833300

約数和(自身を除く): 24120375

約数列:

[1, 3, 5, 9, 15, 25, 37, 45, 75, 111, 185, 225, 333, 555, 925, 1665, 2775, 3449, 8325, 10347, 17245, 31041, 51735, 86225, 127613, 155205, 258675, 382839, 638065, 776025, 1148517, 1914195, 3190325, 5742585, 9570975, 28712925]

約数ペア:

[(1, 28712925), (3, 9570975), (5, 5742585), (9, 3190325), (15, 1914195), (25, 1148517), (37, 776025), (45, 638065), (75, 382839), (111, 258675), (185, 155205), (225, 127613), (333, 86225), (555, 51735), (925, 31041), (1665, 17245), (2775, 10347), (3449, 8325)]