71278000

素因数分解:

$2^4\times 5^3\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:407

約数の個数: 80

約数和(自身を含む): 174212064

約数和(自身を除く): 102934064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 157, 200, 227, 250, 314, 400, 454, 500, 628, 785, 908, 1000, 1135, 1256, 1570, 1816, 2000, 2270, 2512, 3140, 3632, 3925, 4540, 5675, 6280, 7850, 9080, 11350, 12560, 15700, 18160, 19625, 22700, 28375, 31400, 35639, 39250, 45400, 56750, 62800, 71278, 78500, 90800, 113500, 142556, 157000, 178195, 227000, 285112, 314000, 356390, 454000, 570224, 712780, 890975, 1425560, 1781950, 2851120, 3563900, 4454875, 7127800, 8909750, 14255600, 17819500, 35639000, 71278000]

約数ペア:

[(1, 71278000), (2, 35639000), (4, 17819500), (5, 14255600), (8, 8909750), (10, 7127800), (16, 4454875), (20, 3563900), (25, 2851120), (40, 1781950), (50, 1425560), (80, 890975), (100, 712780), (125, 570224), (157, 454000), (200, 356390), (227, 314000), (250, 285112), (314, 227000), (400, 178195), (454, 157000), (500, 142556), (628, 113500), (785, 90800), (908, 78500), (1000, 71278), (1135, 62800), (1256, 56750), (1570, 45400), (1816, 39250), (2000, 35639), (2270, 31400), (2512, 28375), (3140, 22700), (3632, 19625), (3925, 18160), (4540, 15700), (5675, 12560), (6280, 11350), (7850, 9080)]