20955671760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{666529}}^1$

素因数の和:666676

約数の個数: 80

約数和(自身を含む): 65458578240

約数和(自身を除く): 44502906480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 131, 240, 262, 393, 524, 655, 786, 1048, 1310, 1572, 1965, 2096, 2620, 3144, 3930, 5240, 6288, 7860, 10480, 15720, 31440, 666529, 1333058, 1999587, 2666116, 3332645, 3999174, 5332232, 6665290, 7998348, 9997935, 10664464, 13330580, 15996696, 19995870, 26661160, 31993392, 39991740, 53322320, 79983480, 87315299, 159966960, 174630598, 261945897, 349261196, 436576495, 523891794, 698522392, 873152990, 1047783588, 1309729485, 1397044784, 1746305980, 2095567176, 2619458970, 3492611960, 4191134352, 5238917940, 6985223920, 10477835880, 20955671760]

約数ペア:

[(1, 20955671760), (2, 10477835880), (3, 6985223920), (4, 5238917940), (5, 4191134352), (6, 3492611960), (8, 2619458970), (10, 2095567176), (12, 1746305980), (15, 1397044784), (16, 1309729485), (20, 1047783588), (24, 873152990), (30, 698522392), (40, 523891794), (48, 436576495), (60, 349261196), (80, 261945897), (120, 174630598), (131, 159966960), (240, 87315299), (262, 79983480), (393, 53322320), (524, 39991740), (655, 31993392), (786, 26661160), (1048, 19995870), (1310, 15996696), (1572, 13330580), (1965, 10664464), (2096, 9997935), (2620, 7998348), (3144, 6665290), (3930, 5332232), (5240, 3999174), (6288, 3332645), (7860, 2666116), (10480, 1999587), (15720, 1333058), (31440, 666529)]