219889852

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{409}}^1$

素因数の和:651

約数の個数: 72

約数和(自身を含む): 485535120

約数和(自身を除く): 265645268

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 211, 364, 409, 422, 637, 818, 844, 1274, 1477, 1636, 2548, 2743, 2863, 2954, 5317, 5486, 5726, 5908, 10339, 10634, 10972, 11452, 19201, 20041, 20678, 21268, 37219, 38402, 40082, 41356, 74438, 76804, 80164, 86299, 134407, 148876, 172598, 260533, 268814, 345196, 521066, 537628, 604093, 1042132, 1121887, 1208186, 2243774, 2416372, 4228651, 4487548, 7853209, 8457302, 15706418, 16914604, 31412836, 54972463, 109944926, 219889852]

約数ペア:

[(1, 219889852), (2, 109944926), (4, 54972463), (7, 31412836), (13, 16914604), (14, 15706418), (26, 8457302), (28, 7853209), (49, 4487548), (52, 4228651), (91, 2416372), (98, 2243774), (182, 1208186), (196, 1121887), (211, 1042132), (364, 604093), (409, 537628), (422, 521066), (637, 345196), (818, 268814), (844, 260533), (1274, 172598), (1477, 148876), (1636, 134407), (2548, 86299), (2743, 80164), (2863, 76804), (2954, 74438), (5317, 41356), (5486, 40082), (5726, 38402), (5908, 37219), (10339, 21268), (10634, 20678), (10972, 20041), (11452, 19201)]