256745370

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{1222597}}^1$

素因数の和:1222614

約数の個数: 32

約数和(自身を含む): 704216448

約数和(自身を除く): 447471078

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 1222597, 2445194, 3667791, 6112985, 7335582, 8558179, 12225970, 17116358, 18338955, 25674537, 36677910, 42790895, 51349074, 85581790, 128372685, 256745370]

約数ペア:

[(1, 256745370), (2, 128372685), (3, 85581790), (5, 51349074), (6, 42790895), (7, 36677910), (10, 25674537), (14, 18338955), (15, 17116358), (21, 12225970), (30, 8558179), (35, 7335582), (42, 6112985), (70, 3667791), (105, 2445194), (210, 1222597)]