512200

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 1288980

約数和(自身を除く): 776780

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 197, 200, 260, 325, 394, 520, 650, 788, 985, 1300, 1576, 1970, 2561, 2600, 3940, 4925, 5122, 7880, 9850, 10244, 12805, 19700, 20488, 25610, 39400, 51220, 64025, 102440, 128050, 256100, 512200]

約数ペア:

[(1, 512200), (2, 256100), (4, 128050), (5, 102440), (8, 64025), (10, 51220), (13, 39400), (20, 25610), (25, 20488), (26, 19700), (40, 12805), (50, 10244), (52, 9850), (65, 7880), (100, 5122), (104, 4925), (130, 3940), (197, 2600), (200, 2561), (260, 1970), (325, 1576), (394, 1300), (520, 985), (650, 788)]