172723775

素因数分解:

$5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:265

約数の個数: 72

約数和(自身を含む): 270138960

約数和(自身を除く): 97415185

約数列:

[1, 5, 7, 19, 25, 35, 41, 49, 95, 133, 175, 181, 205, 245, 287, 475, 665, 779, 905, 931, 1025, 1225, 1267, 1435, 2009, 3325, 3439, 3895, 4525, 4655, 5453, 6335, 7175, 7421, 8869, 10045, 17195, 19475, 23275, 24073, 27265, 31675, 37105, 38171, 44345, 50225, 51947, 85975, 120365, 136325, 140999, 168511, 185525, 190855, 221725, 259735, 363629, 601825, 704995, 842555, 954275, 986993, 1298675, 1818145, 3524975, 4212775, 4934965, 6908951, 9090725, 24674825, 34544755, 172723775]

約数ペア:

[(1, 172723775), (5, 34544755), (7, 24674825), (19, 9090725), (25, 6908951), (35, 4934965), (41, 4212775), (49, 3524975), (95, 1818145), (133, 1298675), (175, 986993), (181, 954275), (205, 842555), (245, 704995), (287, 601825), (475, 363629), (665, 259735), (779, 221725), (905, 190855), (931, 185525), (1025, 168511), (1225, 140999), (1267, 136325), (1435, 120365), (2009, 85975), (3325, 51947), (3439, 50225), (3895, 44345), (4525, 38171), (4655, 37105), (5453, 31675), (6335, 27265), (7175, 24073), (7421, 23275), (8869, 19475), (10045, 17195)]