199788908

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 400359792

約数和(自身を除く): 200570884

約数列:

[1, 2, 4, 11, 22, 44, 61, 67, 101, 121, 122, 134, 202, 242, 244, 268, 404, 484, 671, 737, 1111, 1342, 1474, 2222, 2684, 2948, 4087, 4444, 6161, 6767, 7381, 8107, 8174, 12221, 12322, 13534, 14762, 16214, 16348, 24442, 24644, 27068, 29524, 32428, 44957, 48884, 67771, 74437, 89914, 135542, 148874, 179828, 271084, 297748, 412787, 494527, 745481, 818807, 825574, 989054, 1490962, 1637614, 1651148, 1978108, 2981924, 3275228, 4540657, 9081314, 18162628, 49947227, 99894454, 199788908]

約数ペア:

[(1, 199788908), (2, 99894454), (4, 49947227), (11, 18162628), (22, 9081314), (44, 4540657), (61, 3275228), (67, 2981924), (101, 1978108), (121, 1651148), (122, 1637614), (134, 1490962), (202, 989054), (242, 825574), (244, 818807), (268, 745481), (404, 494527), (484, 412787), (671, 297748), (737, 271084), (1111, 179828), (1342, 148874), (1474, 135542), (2222, 89914), (2684, 74437), (2948, 67771), (4087, 48884), (4444, 44957), (6161, 32428), (6767, 29524), (7381, 27068), (8107, 24644), (8174, 24442), (12221, 16348), (12322, 16214), (13534, 14762)]