20711810

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{983}}^1$

素因数の和:1047

約数の個数: 48

約数和(自身を含む): 44421696

約数和(自身を除く): 23709886

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 49, 70, 86, 98, 215, 245, 301, 430, 490, 602, 983, 1505, 1966, 2107, 3010, 4214, 4915, 6881, 9830, 10535, 13762, 21070, 34405, 42269, 48167, 68810, 84538, 96334, 211345, 240835, 295883, 422690, 481670, 591766, 1479415, 2071181, 2958830, 4142362, 10355905, 20711810]

約数ペア:

[(1, 20711810), (2, 10355905), (5, 4142362), (7, 2958830), (10, 2071181), (14, 1479415), (35, 591766), (43, 481670), (49, 422690), (70, 295883), (86, 240835), (98, 211345), (215, 96334), (245, 84538), (301, 68810), (430, 48167), (490, 42269), (602, 34405), (983, 21070), (1505, 13762), (1966, 10535), (2107, 9830), (3010, 6881), (4214, 4915)]