81971724

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:439

約数の個数: 72

約数和(自身を含む): 205937200

約数和(自身を除く): 123965476

約数列:

[1, 2, 3, 4, 6, 12, 23, 37, 46, 69, 74, 92, 111, 138, 148, 222, 276, 349, 444, 529, 698, 851, 1047, 1058, 1396, 1587, 1702, 2094, 2116, 2553, 3174, 3404, 4188, 5106, 6348, 8027, 10212, 12913, 16054, 19573, 24081, 25826, 32108, 38739, 39146, 48162, 51652, 58719, 77478, 78292, 96324, 117438, 154956, 184621, 234876, 296999, 369242, 553863, 593998, 738484, 890997, 1107726, 1187996, 1781994, 2215452, 3563988, 6830977, 13661954, 20492931, 27323908, 40985862, 81971724]

約数ペア:

[(1, 81971724), (2, 40985862), (3, 27323908), (4, 20492931), (6, 13661954), (12, 6830977), (23, 3563988), (37, 2215452), (46, 1781994), (69, 1187996), (74, 1107726), (92, 890997), (111, 738484), (138, 593998), (148, 553863), (222, 369242), (276, 296999), (349, 234876), (444, 184621), (529, 154956), (698, 117438), (851, 96324), (1047, 78292), (1058, 77478), (1396, 58719), (1587, 51652), (1702, 48162), (2094, 39146), (2116, 38739), (2553, 32108), (3174, 25826), (3404, 24081), (4188, 19573), (5106, 16054), (6348, 12913), (8027, 10212)]