407120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{727}}^1$

素因数の和:747

約数の個数: 40

約数和(自身を含む): 1083264

約数和(自身を除く): 676144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 727, 1454, 2908, 3635, 5089, 5816, 7270, 10178, 11632, 14540, 20356, 25445, 29080, 40712, 50890, 58160, 81424, 101780, 203560, 407120]

約数ペア:

[(1, 407120), (2, 203560), (4, 101780), (5, 81424), (7, 58160), (8, 50890), (10, 40712), (14, 29080), (16, 25445), (20, 20356), (28, 14540), (35, 11632), (40, 10178), (56, 7270), (70, 5816), (80, 5089), (112, 3635), (140, 2908), (280, 1454), (560, 727)]