820121470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{443}}^1\times {\mathrm{499}}^1$

素因数の和:1009

約数の個数: 64

約数和(自身を含む): 1726272000

約数和(自身を除く): 906150530

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 265, 371, 443, 499, 530, 742, 886, 998, 1855, 2215, 2495, 3101, 3493, 3710, 4430, 4990, 6202, 6986, 15505, 17465, 23479, 26447, 31010, 34930, 46958, 52894, 117395, 132235, 164353, 185129, 221057, 234790, 264470, 328706, 370258, 442114, 821765, 925645, 1105285, 1547399, 1643530, 1851290, 2210570, 3094798, 7736995, 11716021, 15473990, 23432042, 58580105, 82012147, 117160210, 164024294, 410060735, 820121470]

約数ペア:

[(1, 820121470), (2, 410060735), (5, 164024294), (7, 117160210), (10, 82012147), (14, 58580105), (35, 23432042), (53, 15473990), (70, 11716021), (106, 7736995), (265, 3094798), (371, 2210570), (443, 1851290), (499, 1643530), (530, 1547399), (742, 1105285), (886, 925645), (998, 821765), (1855, 442114), (2215, 370258), (2495, 328706), (3101, 264470), (3493, 234790), (3710, 221057), (4430, 185129), (4990, 164353), (6202, 132235), (6986, 117395), (15505, 52894), (17465, 46958), (23479, 34930), (26447, 31010)]