206864720

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{19739}}^1$

素因数の和:19883

約数の個数: 40

約数和(自身を含む): 484656480

約数和(自身を除く): 277791760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 10480, 19739, 39478, 78956, 98695, 157912, 197390, 315824, 394780, 789560, 1579120, 2585809, 5171618, 10343236, 12929045, 20686472, 25858090, 41372944, 51716180, 103432360, 206864720]

約数ペア:

[(1, 206864720), (2, 103432360), (4, 51716180), (5, 41372944), (8, 25858090), (10, 20686472), (16, 12929045), (20, 10343236), (40, 5171618), (80, 2585809), (131, 1579120), (262, 789560), (524, 394780), (655, 315824), (1048, 197390), (1310, 157912), (2096, 98695), (2620, 78956), (5240, 39478), (10480, 19739)]