31378900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1949}}^1$

素因数の和:1993

約数の個数: 72

約数和(自身を含む): 81244800

約数和(自身を除く): 49865900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 140, 161, 175, 230, 322, 350, 460, 575, 644, 700, 805, 1150, 1610, 1949, 2300, 3220, 3898, 4025, 7796, 8050, 9745, 13643, 16100, 19490, 27286, 38980, 44827, 48725, 54572, 68215, 89654, 97450, 136430, 179308, 194900, 224135, 272860, 313789, 341075, 448270, 627578, 682150, 896540, 1120675, 1255156, 1364300, 1568945, 2241350, 3137890, 4482700, 6275780, 7844725, 15689450, 31378900]

約数ペア:

[(1, 31378900), (2, 15689450), (4, 7844725), (5, 6275780), (7, 4482700), (10, 3137890), (14, 2241350), (20, 1568945), (23, 1364300), (25, 1255156), (28, 1120675), (35, 896540), (46, 682150), (50, 627578), (70, 448270), (92, 341075), (100, 313789), (115, 272860), (140, 224135), (161, 194900), (175, 179308), (230, 136430), (322, 97450), (350, 89654), (460, 68215), (575, 54572), (644, 48725), (700, 44827), (805, 38980), (1150, 27286), (1610, 19490), (1949, 16100), (2300, 13643), (3220, 9745), (3898, 8050), (4025, 7796)]