25064780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{647}}^1$

素因数の和:818

約数の個数: 48

約数和(自身を含む): 57153600

約数和(自身を除く): 32088820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 149, 260, 298, 596, 647, 745, 1294, 1490, 1937, 2588, 2980, 3235, 3874, 6470, 7748, 8411, 9685, 12940, 16822, 19370, 33644, 38740, 42055, 84110, 96403, 168220, 192806, 385612, 482015, 964030, 1253239, 1928060, 2506478, 5012956, 6266195, 12532390, 25064780]

約数ペア:

[(1, 25064780), (2, 12532390), (4, 6266195), (5, 5012956), (10, 2506478), (13, 1928060), (20, 1253239), (26, 964030), (52, 482015), (65, 385612), (130, 192806), (149, 168220), (260, 96403), (298, 84110), (596, 42055), (647, 38740), (745, 33644), (1294, 19370), (1490, 16822), (1937, 12940), (2588, 9685), (2980, 8411), (3235, 7748), (3874, 6470)]