661246460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{20807}}^1$

素因数の和:21050

約数の個数: 48

約数和(自身を含む): 1594059264

約数和(自身を除く): 932812804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 227, 454, 908, 1135, 1589, 2270, 3178, 4540, 6356, 7945, 15890, 20807, 31780, 41614, 83228, 104035, 145649, 208070, 291298, 416140, 582596, 728245, 1456490, 2912980, 4723189, 9446378, 18892756, 23615945, 33062323, 47231890, 66124646, 94463780, 132249292, 165311615, 330623230, 661246460]

約数ペア:

[(1, 661246460), (2, 330623230), (4, 165311615), (5, 132249292), (7, 94463780), (10, 66124646), (14, 47231890), (20, 33062323), (28, 23615945), (35, 18892756), (70, 9446378), (140, 4723189), (227, 2912980), (454, 1456490), (908, 728245), (1135, 582596), (1589, 416140), (2270, 291298), (3178, 208070), (4540, 145649), (6356, 104035), (7945, 83228), (15890, 41614), (20807, 31780)]