20958630

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:282

約数の個数: 128

約数和(自身を含む): 64475136

約数和(自身を除く): 43516506

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 43, 55, 66, 70, 77, 86, 105, 110, 129, 154, 165, 210, 211, 215, 231, 258, 301, 330, 385, 422, 430, 462, 473, 602, 633, 645, 770, 903, 946, 1055, 1155, 1266, 1290, 1419, 1477, 1505, 1806, 2110, 2310, 2321, 2365, 2838, 2954, 3010, 3165, 3311, 4431, 4515, 4642, 4730, 6330, 6622, 6963, 7095, 7385, 8862, 9030, 9073, 9933, 11605, 13926, 14190, 14770, 16247, 16555, 18146, 19866, 22155, 23210, 27219, 32494, 33110, 34815, 44310, 45365, 48741, 49665, 54438, 63511, 69630, 81235, 90730, 97482, 99330, 99803, 127022, 136095, 162470, 190533, 199606, 243705, 272190, 299409, 317555, 381066, 487410, 499015, 598818, 635110, 698621, 952665, 998030, 1397242, 1497045, 1905330, 2095863, 2994090, 3493105, 4191726, 6986210, 10479315, 20958630]

約数ペア:

[(1, 20958630), (2, 10479315), (3, 6986210), (5, 4191726), (6, 3493105), (7, 2994090), (10, 2095863), (11, 1905330), (14, 1497045), (15, 1397242), (21, 998030), (22, 952665), (30, 698621), (33, 635110), (35, 598818), (42, 499015), (43, 487410), (55, 381066), (66, 317555), (70, 299409), (77, 272190), (86, 243705), (105, 199606), (110, 190533), (129, 162470), (154, 136095), (165, 127022), (210, 99803), (211, 99330), (215, 97482), (231, 90730), (258, 81235), (301, 69630), (330, 63511), (385, 54438), (422, 49665), (430, 48741), (462, 45365), (473, 44310), (602, 34815), (633, 33110), (645, 32494), (770, 27219), (903, 23210), (946, 22155), (1055, 19866), (1155, 18146), (1266, 16555), (1290, 16247), (1419, 14770), (1477, 14190), (1505, 13926), (1806, 11605), (2110, 9933), (2310, 9073), (2321, 9030), (2365, 8862), (2838, 7385), (2954, 7095), (3010, 6963), (3165, 6622), (3311, 6330), (4431, 4730), (4515, 4642)]