7429940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{727}}^1$

素因数の和:816

約数の個数: 48

約数和(自身を含む): 18100992

約数和(自身を除く): 10671052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 727, 730, 1022, 1454, 1460, 2044, 2555, 2908, 3635, 5089, 5110, 7270, 10178, 10220, 14540, 20356, 25445, 50890, 53071, 101780, 106142, 212284, 265355, 371497, 530710, 742994, 1061420, 1485988, 1857485, 3714970, 7429940]

約数ペア:

[(1, 7429940), (2, 3714970), (4, 1857485), (5, 1485988), (7, 1061420), (10, 742994), (14, 530710), (20, 371497), (28, 265355), (35, 212284), (70, 106142), (73, 101780), (140, 53071), (146, 50890), (292, 25445), (365, 20356), (511, 14540), (727, 10220), (730, 10178), (1022, 7270), (1454, 5110), (1460, 5089), (2044, 3635), (2555, 2908)]