128782850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{43}}^2\times {\mathrm{199}}^1$

素因数の和:304

約数の個数: 72

約数和(自身を含む): 281678400

約数和(自身を除く): 152895550

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 43, 50, 70, 86, 175, 199, 215, 301, 350, 398, 430, 602, 995, 1075, 1393, 1505, 1849, 1990, 2150, 2786, 3010, 3698, 4975, 6965, 7525, 8557, 9245, 9950, 12943, 13930, 15050, 17114, 18490, 25886, 34825, 42785, 46225, 59899, 64715, 69650, 85570, 92450, 119798, 129430, 213925, 299495, 323575, 367951, 427850, 598990, 647150, 735902, 1497475, 1839755, 2575657, 2994950, 3679510, 5151314, 9198775, 12878285, 18397550, 25756570, 64391425, 128782850]

約数ペア:

[(1, 128782850), (2, 64391425), (5, 25756570), (7, 18397550), (10, 12878285), (14, 9198775), (25, 5151314), (35, 3679510), (43, 2994950), (50, 2575657), (70, 1839755), (86, 1497475), (175, 735902), (199, 647150), (215, 598990), (301, 427850), (350, 367951), (398, 323575), (430, 299495), (602, 213925), (995, 129430), (1075, 119798), (1393, 92450), (1505, 85570), (1849, 69650), (1990, 64715), (2150, 59899), (2786, 46225), (3010, 42785), (3698, 34825), (4975, 25886), (6965, 18490), (7525, 17114), (8557, 15050), (9245, 13930), (9950, 12943)]