212852220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{506791}}^1$

素因数の和:506810

約数の個数: 48

約数和(自身を含む): 681128448

約数和(自身を除く): 468276228

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 506791, 1013582, 1520373, 2027164, 2533955, 3040746, 3547537, 5067910, 6081492, 7095074, 7601865, 10135820, 10642611, 14190148, 15203730, 17737685, 21285222, 30407460, 35475370, 42570444, 53213055, 70950740, 106426110, 212852220]

約数ペア:

[(1, 212852220), (2, 106426110), (3, 70950740), (4, 53213055), (5, 42570444), (6, 35475370), (7, 30407460), (10, 21285222), (12, 17737685), (14, 15203730), (15, 14190148), (20, 10642611), (21, 10135820), (28, 7601865), (30, 7095074), (35, 6081492), (42, 5067910), (60, 3547537), (70, 3040746), (84, 2533955), (105, 2027164), (140, 1520373), (210, 1013582), (420, 506791)]