20722130

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:411

約数の個数: 64

約数和(自身を含む): 44972928

約数和(自身を除く): 24250798

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 43, 55, 65, 86, 110, 130, 143, 215, 286, 337, 430, 473, 559, 674, 715, 946, 1118, 1430, 1685, 2365, 2795, 3370, 3707, 4381, 4730, 5590, 6149, 7414, 8762, 12298, 14491, 18535, 21905, 28982, 30745, 37070, 43810, 48191, 61490, 72455, 96382, 144910, 159401, 188383, 240955, 318802, 376766, 481910, 797005, 941915, 1594010, 1883830, 2072213, 4144426, 10361065, 20722130]

約数ペア:

[(1, 20722130), (2, 10361065), (5, 4144426), (10, 2072213), (11, 1883830), (13, 1594010), (22, 941915), (26, 797005), (43, 481910), (55, 376766), (65, 318802), (86, 240955), (110, 188383), (130, 159401), (143, 144910), (215, 96382), (286, 72455), (337, 61490), (430, 48191), (473, 43810), (559, 37070), (674, 30745), (715, 28982), (946, 21905), (1118, 18535), (1430, 14491), (1685, 12298), (2365, 8762), (2795, 7414), (3370, 6149), (3707, 5590), (4381, 4730)]