70000400

素因数分解:

$2^4\times 5^2\times {\mathrm{139}}^1\times {\mathrm{1259}}^1$

素因数の和:1416

約数の個数: 60

約数和(自身を含む): 169520400

約数和(自身を除く): 99520000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 139, 200, 278, 400, 556, 695, 1112, 1259, 1390, 2224, 2518, 2780, 3475, 5036, 5560, 6295, 6950, 10072, 11120, 12590, 13900, 20144, 25180, 27800, 31475, 50360, 55600, 62950, 100720, 125900, 175001, 251800, 350002, 503600, 700004, 875005, 1400008, 1750010, 2800016, 3500020, 4375025, 7000040, 8750050, 14000080, 17500100, 35000200, 70000400]

約数ペア:

[(1, 70000400), (2, 35000200), (4, 17500100), (5, 14000080), (8, 8750050), (10, 7000040), (16, 4375025), (20, 3500020), (25, 2800016), (40, 1750010), (50, 1400008), (80, 875005), (100, 700004), (139, 503600), (200, 350002), (278, 251800), (400, 175001), (556, 125900), (695, 100720), (1112, 62950), (1259, 55600), (1390, 50360), (2224, 31475), (2518, 27800), (2780, 25180), (3475, 20144), (5036, 13900), (5560, 12590), (6295, 11120), (6950, 10072)]