9890540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 23550576

約数和(自身を除く): 13660036

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 67, 110, 121, 122, 134, 220, 242, 244, 268, 305, 335, 484, 605, 610, 670, 671, 737, 1210, 1220, 1340, 1342, 1474, 2420, 2684, 2948, 3355, 3685, 4087, 6710, 7370, 7381, 8107, 8174, 13420, 14740, 14762, 16214, 16348, 20435, 29524, 32428, 36905, 40535, 40870, 44957, 73810, 81070, 81740, 89914, 147620, 162140, 179828, 224785, 449570, 494527, 899140, 989054, 1978108, 2472635, 4945270, 9890540]

約数ペア:

[(1, 9890540), (2, 4945270), (4, 2472635), (5, 1978108), (10, 989054), (11, 899140), (20, 494527), (22, 449570), (44, 224785), (55, 179828), (61, 162140), (67, 147620), (110, 89914), (121, 81740), (122, 81070), (134, 73810), (220, 44957), (242, 40870), (244, 40535), (268, 36905), (305, 32428), (335, 29524), (484, 20435), (605, 16348), (610, 16214), (670, 14762), (671, 14740), (737, 13420), (1210, 8174), (1220, 8107), (1340, 7381), (1342, 7370), (1474, 6710), (2420, 4087), (2684, 3685), (2948, 3355)]