218960085

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1051}}^1$

素因数の和:1138

約数の個数: 64

約数和(自身を含む): 399928320

約数和(自身を除く): 180968235

約数列:

[1, 3, 5, 15, 17, 19, 43, 51, 57, 85, 95, 129, 215, 255, 285, 323, 645, 731, 817, 969, 1051, 1615, 2193, 2451, 3153, 3655, 4085, 4845, 5255, 10965, 12255, 13889, 15765, 17867, 19969, 41667, 45193, 53601, 59907, 69445, 89335, 99845, 135579, 208335, 225965, 268005, 299535, 339473, 677895, 768281, 858667, 1018419, 1697365, 2304843, 2576001, 3841405, 4293335, 5092095, 11524215, 12880005, 14597339, 43792017, 72986695, 218960085]

約数ペア:

[(1, 218960085), (3, 72986695), (5, 43792017), (15, 14597339), (17, 12880005), (19, 11524215), (43, 5092095), (51, 4293335), (57, 3841405), (85, 2576001), (95, 2304843), (129, 1697365), (215, 1018419), (255, 858667), (285, 768281), (323, 677895), (645, 339473), (731, 299535), (817, 268005), (969, 225965), (1051, 208335), (1615, 135579), (2193, 99845), (2451, 89335), (3153, 69445), (3655, 59907), (4085, 53601), (4845, 45193), (5255, 41667), (10965, 19969), (12255, 17867), (13889, 15765)]