18989316

素因数分解:

$2^2\times 3^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:135

約数の個数: 120

約数和(自身を含む): 53665920

約数和(自身を除く): 34676604

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 29, 36, 43, 47, 54, 58, 81, 86, 87, 94, 108, 116, 129, 141, 162, 172, 174, 188, 258, 261, 282, 324, 348, 387, 423, 516, 522, 564, 774, 783, 846, 1044, 1161, 1247, 1269, 1363, 1548, 1566, 1692, 2021, 2322, 2349, 2494, 2538, 2726, 3132, 3483, 3741, 3807, 4042, 4089, 4644, 4698, 4988, 5076, 5452, 6063, 6966, 7482, 7614, 8084, 8178, 9396, 11223, 12126, 12267, 13932, 14964, 15228, 16356, 18189, 22446, 24252, 24534, 33669, 36378, 36801, 44892, 49068, 54567, 58609, 67338, 72756, 73602, 101007, 109134, 110403, 117218, 134676, 147204, 163701, 175827, 202014, 218268, 220806, 234436, 327402, 351654, 404028, 441612, 527481, 654804, 703308, 1054962, 1582443, 2109924, 3164886, 4747329, 6329772, 9494658, 18989316]

約数ペア:

[(1, 18989316), (2, 9494658), (3, 6329772), (4, 4747329), (6, 3164886), (9, 2109924), (12, 1582443), (18, 1054962), (27, 703308), (29, 654804), (36, 527481), (43, 441612), (47, 404028), (54, 351654), (58, 327402), (81, 234436), (86, 220806), (87, 218268), (94, 202014), (108, 175827), (116, 163701), (129, 147204), (141, 134676), (162, 117218), (172, 110403), (174, 109134), (188, 101007), (258, 73602), (261, 72756), (282, 67338), (324, 58609), (348, 54567), (387, 49068), (423, 44892), (516, 36801), (522, 36378), (564, 33669), (774, 24534), (783, 24252), (846, 22446), (1044, 18189), (1161, 16356), (1247, 15228), (1269, 14964), (1363, 13932), (1548, 12267), (1566, 12126), (1692, 11223), (2021, 9396), (2322, 8178), (2349, 8084), (2494, 7614), (2538, 7482), (2726, 6966), (3132, 6063), (3483, 5452), (3741, 5076), (3807, 4988), (4042, 4698), (4089, 4644)]