321609920

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1181}}^1$

素因数の和:1258

約数の個数: 112

約数和(自身を含む): 821423808

約数和(自身を除く): 499813888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 37, 40, 46, 64, 74, 80, 92, 115, 148, 160, 184, 185, 230, 296, 320, 368, 370, 460, 592, 736, 740, 851, 920, 1181, 1184, 1472, 1480, 1702, 1840, 2362, 2368, 2960, 3404, 3680, 4255, 4724, 5905, 5920, 6808, 7360, 8510, 9448, 11810, 11840, 13616, 17020, 18896, 23620, 27163, 27232, 34040, 37792, 43697, 47240, 54326, 54464, 68080, 75584, 87394, 94480, 108652, 135815, 136160, 174788, 188960, 217304, 218485, 271630, 272320, 349576, 377920, 434608, 436970, 543260, 699152, 869216, 873940, 1005031, 1086520, 1398304, 1738432, 1747880, 2010062, 2173040, 2796608, 3495760, 4020124, 4346080, 5025155, 6991520, 8040248, 8692160, 10050310, 13983040, 16080496, 20100620, 32160992, 40201240, 64321984, 80402480, 160804960, 321609920]

約数ペア:

[(1, 321609920), (2, 160804960), (4, 80402480), (5, 64321984), (8, 40201240), (10, 32160992), (16, 20100620), (20, 16080496), (23, 13983040), (32, 10050310), (37, 8692160), (40, 8040248), (46, 6991520), (64, 5025155), (74, 4346080), (80, 4020124), (92, 3495760), (115, 2796608), (148, 2173040), (160, 2010062), (184, 1747880), (185, 1738432), (230, 1398304), (296, 1086520), (320, 1005031), (368, 873940), (370, 869216), (460, 699152), (592, 543260), (736, 436970), (740, 434608), (851, 377920), (920, 349576), (1181, 272320), (1184, 271630), (1472, 218485), (1480, 217304), (1702, 188960), (1840, 174788), (2362, 136160), (2368, 135815), (2960, 108652), (3404, 94480), (3680, 87394), (4255, 75584), (4724, 68080), (5905, 54464), (5920, 54326), (6808, 47240), (7360, 43697), (8510, 37792), (9448, 34040), (11810, 27232), (11840, 27163), (13616, 23620), (17020, 18896)]