85042000

素因数分解:

$2^4\times 5^3\times {\mathrm{101}}^1\times {\mathrm{421}}^1$

素因数の和:545

約数の個数: 80

約数和(自身を含む): 208160784

約数和(自身を除く): 123118784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 101, 125, 200, 202, 250, 400, 404, 421, 500, 505, 808, 842, 1000, 1010, 1616, 1684, 2000, 2020, 2105, 2525, 3368, 4040, 4210, 5050, 6736, 8080, 8420, 10100, 10525, 12625, 16840, 20200, 21050, 25250, 33680, 40400, 42100, 42521, 50500, 52625, 84200, 85042, 101000, 105250, 168400, 170084, 202000, 210500, 212605, 340168, 421000, 425210, 680336, 842000, 850420, 1063025, 1700840, 2126050, 3401680, 4252100, 5315125, 8504200, 10630250, 17008400, 21260500, 42521000, 85042000]

約数ペア:

[(1, 85042000), (2, 42521000), (4, 21260500), (5, 17008400), (8, 10630250), (10, 8504200), (16, 5315125), (20, 4252100), (25, 3401680), (40, 2126050), (50, 1700840), (80, 1063025), (100, 850420), (101, 842000), (125, 680336), (200, 425210), (202, 421000), (250, 340168), (400, 212605), (404, 210500), (421, 202000), (500, 170084), (505, 168400), (808, 105250), (842, 101000), (1000, 85042), (1010, 84200), (1616, 52625), (1684, 50500), (2000, 42521), (2020, 42100), (2105, 40400), (2525, 33680), (3368, 25250), (4040, 21050), (4210, 20200), (5050, 16840), (6736, 12625), (8080, 10525), (8420, 10100)]