209420080

素因数分解:

$2^4\times 5^1\times {\mathrm{619}}^1\times {\mathrm{4229}}^1$

素因数の和:4861

約数の個数: 40

約数和(自身を含む): 487803600

約数和(自身を除く): 278383520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 619, 1238, 2476, 3095, 4229, 4952, 6190, 8458, 9904, 12380, 16916, 21145, 24760, 33832, 42290, 49520, 67664, 84580, 169160, 338320, 2617751, 5235502, 10471004, 13088755, 20942008, 26177510, 41884016, 52355020, 104710040, 209420080]

約数ペア:

[(1, 209420080), (2, 104710040), (4, 52355020), (5, 41884016), (8, 26177510), (10, 20942008), (16, 13088755), (20, 10471004), (40, 5235502), (80, 2617751), (619, 338320), (1238, 169160), (2476, 84580), (3095, 67664), (4229, 49520), (4952, 42290), (6190, 33832), (8458, 24760), (9904, 21145), (12380, 16916)]