20899400

素因数分解:

$2^3\times 5^2\times {\mathrm{83}}^1\times {\mathrm{1259}}^1$

素因数の和:1358

約数の個数: 48

約数和(自身を含む): 49215600

約数和(自身を除く): 28316200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 83, 100, 166, 200, 332, 415, 664, 830, 1259, 1660, 2075, 2518, 3320, 4150, 5036, 6295, 8300, 10072, 12590, 16600, 25180, 31475, 50360, 62950, 104497, 125900, 208994, 251800, 417988, 522485, 835976, 1044970, 2089940, 2612425, 4179880, 5224850, 10449700, 20899400]

約数ペア:

[(1, 20899400), (2, 10449700), (4, 5224850), (5, 4179880), (8, 2612425), (10, 2089940), (20, 1044970), (25, 835976), (40, 522485), (50, 417988), (83, 251800), (100, 208994), (166, 125900), (200, 104497), (332, 62950), (415, 50360), (664, 31475), (830, 25180), (1259, 16600), (1660, 12590), (2075, 10072), (2518, 8300), (3320, 6295), (4150, 5036)]