25220205

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{179}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 45826560

約数和(自身を除く): 20606355

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 101, 155, 179, 279, 303, 465, 505, 537, 895, 909, 1395, 1515, 1611, 2685, 3131, 4545, 5549, 8055, 9393, 15655, 16647, 18079, 27745, 28179, 46965, 49941, 54237, 83235, 90395, 140895, 162711, 249705, 271185, 560449, 813555, 1681347, 2802245, 5044041, 8406735, 25220205]

約数ペア:

[(1, 25220205), (3, 8406735), (5, 5044041), (9, 2802245), (15, 1681347), (31, 813555), (45, 560449), (93, 271185), (101, 249705), (155, 162711), (179, 140895), (279, 90395), (303, 83235), (465, 54237), (505, 49941), (537, 46965), (895, 28179), (909, 27745), (1395, 18079), (1515, 16647), (1611, 15655), (2685, 9393), (3131, 8055), (4545, 5549)]