25438245

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:386

約数の個数: 64

約数和(自身を含む): 50319360

約数和(自身を除く): 24881115

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 41, 57, 95, 105, 123, 133, 205, 285, 287, 311, 399, 615, 665, 779, 861, 933, 1435, 1555, 1995, 2177, 2337, 3895, 4305, 4665, 5453, 5909, 6531, 10885, 11685, 12751, 16359, 17727, 27265, 29545, 32655, 38253, 41363, 63755, 81795, 88635, 89257, 124089, 191265, 206815, 242269, 267771, 446285, 620445, 726807, 1211345, 1338855, 1695883, 3634035, 5087649, 8479415, 25438245]

約数ペア:

[(1, 25438245), (3, 8479415), (5, 5087649), (7, 3634035), (15, 1695883), (19, 1338855), (21, 1211345), (35, 726807), (41, 620445), (57, 446285), (95, 267771), (105, 242269), (123, 206815), (133, 191265), (205, 124089), (285, 89257), (287, 88635), (311, 81795), (399, 63755), (615, 41363), (665, 38253), (779, 32655), (861, 29545), (933, 27265), (1435, 17727), (1555, 16359), (1995, 12751), (2177, 11685), (2337, 10885), (3895, 6531), (4305, 5909), (4665, 5453)]