71971690

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{20983}}^1$

素因数の和:21011

約数の個数: 32

約数和(自身を含む): 151084800

約数和(自身を除く): 79113110

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 20983, 41966, 104915, 146881, 209830, 293762, 734405, 1028167, 1468810, 2056334, 5140835, 7197169, 10281670, 14394338, 35985845, 71971690]

約数ペア:

[(1, 71971690), (2, 35985845), (5, 14394338), (7, 10281670), (10, 7197169), (14, 5140835), (35, 2056334), (49, 1468810), (70, 1028167), (98, 734405), (245, 293762), (343, 209830), (490, 146881), (686, 104915), (1715, 41966), (3430, 20983)]