2100400

素因数分解:

$2^4\times 5^2\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:166

約数の個数: 60

約数和(自身を含む): 5189400

約数和(自身を除く): 3089000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 59, 80, 89, 100, 118, 178, 200, 236, 295, 356, 400, 445, 472, 590, 712, 890, 944, 1180, 1424, 1475, 1780, 2225, 2360, 2950, 3560, 4450, 4720, 5251, 5900, 7120, 8900, 10502, 11800, 17800, 21004, 23600, 26255, 35600, 42008, 52510, 84016, 105020, 131275, 210040, 262550, 420080, 525100, 1050200, 2100400]

約数ペア:

[(1, 2100400), (2, 1050200), (4, 525100), (5, 420080), (8, 262550), (10, 210040), (16, 131275), (20, 105020), (25, 84016), (40, 52510), (50, 42008), (59, 35600), (80, 26255), (89, 23600), (100, 21004), (118, 17800), (178, 11800), (200, 10502), (236, 8900), (295, 7120), (356, 5900), (400, 5251), (445, 4720), (472, 4450), (590, 3560), (712, 2950), (890, 2360), (944, 2225), (1180, 1780), (1424, 1475)]