256656190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1\times {\mathrm{431}}^1$

素因数の和:673

約数の個数: 64

約数和(自身を含む): 543449088

約数和(自身を除く): 286792898

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 70, 94, 181, 235, 329, 362, 431, 470, 658, 862, 905, 1267, 1645, 1810, 2155, 2534, 3017, 3290, 4310, 6034, 6335, 8507, 12670, 15085, 17014, 20257, 30170, 40514, 42535, 59549, 78011, 85070, 101285, 119098, 141799, 156022, 202570, 283598, 297745, 390055, 546077, 595490, 708995, 780110, 1092154, 1417990, 2730385, 3666517, 5460770, 7333034, 18332585, 25665619, 36665170, 51331238, 128328095, 256656190]

約数ペア:

[(1, 256656190), (2, 128328095), (5, 51331238), (7, 36665170), (10, 25665619), (14, 18332585), (35, 7333034), (47, 5460770), (70, 3666517), (94, 2730385), (181, 1417990), (235, 1092154), (329, 780110), (362, 708995), (431, 595490), (470, 546077), (658, 390055), (862, 297745), (905, 283598), (1267, 202570), (1645, 156022), (1810, 141799), (2155, 119098), (2534, 101285), (3017, 85070), (3290, 78011), (4310, 59549), (6034, 42535), (6335, 40514), (8507, 30170), (12670, 20257), (15085, 17014)]