42378500

素因数分解:

$2^2\times 5^3\times {\mathrm{131}}^1\times {\mathrm{647}}^1$

素因数の和:797

約数の個数: 48

約数和(自身を含む): 93405312

約数和(自身を除く): 51026812

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 131, 250, 262, 500, 524, 647, 655, 1294, 1310, 2588, 2620, 3235, 3275, 6470, 6550, 12940, 13100, 16175, 16375, 32350, 32750, 64700, 65500, 80875, 84757, 161750, 169514, 323500, 339028, 423785, 847570, 1695140, 2118925, 4237850, 8475700, 10594625, 21189250, 42378500]

約数ペア:

[(1, 42378500), (2, 21189250), (4, 10594625), (5, 8475700), (10, 4237850), (20, 2118925), (25, 1695140), (50, 847570), (100, 423785), (125, 339028), (131, 323500), (250, 169514), (262, 161750), (500, 84757), (524, 80875), (647, 65500), (655, 64700), (1294, 32750), (1310, 32350), (2588, 16375), (2620, 16175), (3235, 13100), (3275, 12940), (6470, 6550)]