28010080

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:392

約数の個数: 96

約数和(自身を含む): 76749120

約数和(自身を除く): 48739040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 89, 112, 140, 160, 178, 224, 280, 281, 356, 445, 560, 562, 623, 712, 890, 1120, 1124, 1246, 1405, 1424, 1780, 1967, 2248, 2492, 2810, 2848, 3115, 3560, 3934, 4496, 4984, 5620, 6230, 7120, 7868, 8992, 9835, 9968, 11240, 12460, 14240, 15736, 19670, 19936, 22480, 24920, 25009, 31472, 39340, 44960, 49840, 50018, 62944, 78680, 99680, 100036, 125045, 157360, 175063, 200072, 250090, 314720, 350126, 400144, 500180, 700252, 800288, 875315, 1000360, 1400504, 1750630, 2000720, 2801008, 3501260, 4001440, 5602016, 7002520, 14005040, 28010080]

約数ペア:

[(1, 28010080), (2, 14005040), (4, 7002520), (5, 5602016), (7, 4001440), (8, 3501260), (10, 2801008), (14, 2000720), (16, 1750630), (20, 1400504), (28, 1000360), (32, 875315), (35, 800288), (40, 700252), (56, 500180), (70, 400144), (80, 350126), (89, 314720), (112, 250090), (140, 200072), (160, 175063), (178, 157360), (224, 125045), (280, 100036), (281, 99680), (356, 78680), (445, 62944), (560, 50018), (562, 49840), (623, 44960), (712, 39340), (890, 31472), (1120, 25009), (1124, 24920), (1246, 22480), (1405, 19936), (1424, 19670), (1780, 15736), (1967, 14240), (2248, 12460), (2492, 11240), (2810, 9968), (2848, 9835), (3115, 8992), (3560, 7868), (3934, 7120), (4496, 6230), (4984, 5620)]