3998750

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{457}}^1$

素因数の和:486

約数の個数: 40

約数和(自身を含む): 8584752

約数和(自身を除く): 4586002

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 125, 175, 250, 350, 457, 625, 875, 914, 1250, 1750, 2285, 3199, 4375, 4570, 6398, 8750, 11425, 15995, 22850, 31990, 57125, 79975, 114250, 159950, 285625, 399875, 571250, 799750, 1999375, 3998750]

約数ペア:

[(1, 3998750), (2, 1999375), (5, 799750), (7, 571250), (10, 399875), (14, 285625), (25, 159950), (35, 114250), (50, 79975), (70, 57125), (125, 31990), (175, 22850), (250, 15995), (350, 11425), (457, 8750), (625, 6398), (875, 4570), (914, 4375), (1250, 3199), (1750, 2285)]