20046975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{709}}^1$

素因数の和:764

約数の個数: 48

約数和(自身を含む): 36976800

約数和(自身を除く): 16929825

約数列:

[1, 3, 5, 13, 15, 25, 29, 39, 65, 75, 87, 145, 195, 325, 377, 435, 709, 725, 975, 1131, 1885, 2127, 2175, 3545, 5655, 9217, 9425, 10635, 17725, 20561, 27651, 28275, 46085, 53175, 61683, 102805, 138255, 230425, 267293, 308415, 514025, 691275, 801879, 1336465, 1542075, 4009395, 6682325, 20046975]

約数ペア:

[(1, 20046975), (3, 6682325), (5, 4009395), (13, 1542075), (15, 1336465), (25, 801879), (29, 691275), (39, 514025), (65, 308415), (75, 267293), (87, 230425), (145, 138255), (195, 102805), (325, 61683), (377, 53175), (435, 46085), (709, 28275), (725, 27651), (975, 20561), (1131, 17725), (1885, 10635), (2127, 9425), (2175, 9217), (3545, 5655)]