25449520

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7759}}^1$

素因数の和:7813

約数の個数: 40

約数和(自身を含む): 60621120

約数和(自身を除く): 35171600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 7759, 15518, 31036, 38795, 62072, 77590, 124144, 155180, 310360, 318119, 620720, 636238, 1272476, 1590595, 2544952, 3181190, 5089904, 6362380, 12724760, 25449520]

約数ペア:

[(1, 25449520), (2, 12724760), (4, 6362380), (5, 5089904), (8, 3181190), (10, 2544952), (16, 1590595), (20, 1272476), (40, 636238), (41, 620720), (80, 318119), (82, 310360), (164, 155180), (205, 124144), (328, 77590), (410, 62072), (656, 38795), (820, 31036), (1640, 15518), (3280, 7759)]