31871560

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:156

約数の個数: 128

約数和(自身を含む): 88128000

約数和(自身を除く): 56256440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 49, 56, 70, 92, 98, 101, 115, 140, 161, 184, 196, 202, 230, 245, 280, 322, 343, 392, 404, 460, 490, 505, 644, 686, 707, 805, 808, 920, 980, 1010, 1127, 1288, 1372, 1414, 1610, 1715, 1960, 2020, 2254, 2323, 2744, 2828, 3220, 3430, 3535, 4040, 4508, 4646, 4949, 5635, 5656, 6440, 6860, 7070, 7889, 9016, 9292, 9898, 11270, 11615, 13720, 14140, 15778, 16261, 18584, 19796, 22540, 23230, 24745, 28280, 31556, 32522, 34643, 39445, 39592, 45080, 46460, 49490, 63112, 65044, 69286, 78890, 81305, 92920, 98980, 113827, 130088, 138572, 157780, 162610, 173215, 197960, 227654, 277144, 315560, 325220, 346430, 455308, 569135, 650440, 692860, 796789, 910616, 1138270, 1385720, 1593578, 2276540, 3187156, 3983945, 4553080, 6374312, 7967890, 15935780, 31871560]

約数ペア:

[(1, 31871560), (2, 15935780), (4, 7967890), (5, 6374312), (7, 4553080), (8, 3983945), (10, 3187156), (14, 2276540), (20, 1593578), (23, 1385720), (28, 1138270), (35, 910616), (40, 796789), (46, 692860), (49, 650440), (56, 569135), (70, 455308), (92, 346430), (98, 325220), (101, 315560), (115, 277144), (140, 227654), (161, 197960), (184, 173215), (196, 162610), (202, 157780), (230, 138572), (245, 130088), (280, 113827), (322, 98980), (343, 92920), (392, 81305), (404, 78890), (460, 69286), (490, 65044), (505, 63112), (644, 49490), (686, 46460), (707, 45080), (805, 39592), (808, 39445), (920, 34643), (980, 32522), (1010, 31556), (1127, 28280), (1288, 24745), (1372, 23230), (1414, 22540), (1610, 19796), (1715, 18584), (1960, 16261), (2020, 15778), (2254, 14140), (2323, 13720), (2744, 11615), (2828, 11270), (3220, 9898), (3430, 9292), (3535, 9016), (4040, 7889), (4508, 7070), (4646, 6860), (4949, 6440), (5635, 5656)]