211908830

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{61781}}^1$

素因数の和:61809

約数の個数: 32

約数和(自身を含む): 444830400

約数和(自身を除く): 232921570

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 61781, 123562, 308905, 432467, 617810, 864934, 2162335, 3027269, 4324670, 6054538, 15136345, 21190883, 30272690, 42381766, 105954415, 211908830]

約数ペア:

[(1, 211908830), (2, 105954415), (5, 42381766), (7, 30272690), (10, 21190883), (14, 15136345), (35, 6054538), (49, 4324670), (70, 3027269), (98, 2162335), (245, 864934), (343, 617810), (490, 432467), (686, 308905), (1715, 123562), (3430, 61781)]