164015740

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{23909}}^1$

素因数の和:23939

約数の個数: 48

約数和(自身を含む): 401688000

約数和(自身を除く): 237672260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 23909, 47818, 95636, 119545, 167363, 239090, 334726, 478180, 669452, 836815, 1171541, 1673630, 2343082, 3347260, 4686164, 5857705, 8200787, 11715410, 16401574, 23430820, 32803148, 41003935, 82007870, 164015740]

約数ペア:

[(1, 164015740), (2, 82007870), (4, 41003935), (5, 32803148), (7, 23430820), (10, 16401574), (14, 11715410), (20, 8200787), (28, 5857705), (35, 4686164), (49, 3347260), (70, 2343082), (98, 1673630), (140, 1171541), (196, 836815), (245, 669452), (343, 478180), (490, 334726), (686, 239090), (980, 167363), (1372, 119545), (1715, 95636), (3430, 47818), (6860, 23909)]