261219400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{100469}}^1$

素因数の和:100498

約数の個数: 48

約数和(自身を含む): 654059700

約数和(自身を除く): 392840300

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 100469, 200938, 401876, 502345, 803752, 1004690, 1306097, 2009380, 2511725, 2612194, 4018760, 5023450, 5224388, 6530485, 10046900, 10448776, 13060970, 20093800, 26121940, 32652425, 52243880, 65304850, 130609700, 261219400]

約数ペア:

[(1, 261219400), (2, 130609700), (4, 65304850), (5, 52243880), (8, 32652425), (10, 26121940), (13, 20093800), (20, 13060970), (25, 10448776), (26, 10046900), (40, 6530485), (50, 5224388), (52, 5023450), (65, 4018760), (100, 2612194), (104, 2511725), (130, 2009380), (200, 1306097), (260, 1004690), (325, 803752), (520, 502345), (650, 401876), (1300, 200938), (2600, 100469)]