18800028

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{139}}^1$

素因数の和:196

約数の個数: 108

約数和(自身を含む): 54756520

約数和(自身を除く): 35956492

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 68, 78, 102, 117, 139, 153, 156, 204, 221, 234, 278, 289, 306, 417, 442, 468, 556, 578, 612, 663, 834, 867, 884, 1156, 1251, 1326, 1668, 1734, 1807, 1989, 2363, 2502, 2601, 2652, 3468, 3614, 3757, 3978, 4726, 5004, 5202, 5421, 7089, 7228, 7514, 7956, 9452, 10404, 10842, 11271, 14178, 15028, 16263, 21267, 21684, 22542, 28356, 30719, 32526, 33813, 40171, 42534, 45084, 61438, 65052, 67626, 80342, 85068, 92157, 120513, 122876, 135252, 160684, 184314, 241026, 276471, 361539, 368628, 482052, 522223, 552942, 723078, 1044446, 1105884, 1446156, 1566669, 2088892, 3133338, 4700007, 6266676, 9400014, 18800028]

約数ペア:

[(1, 18800028), (2, 9400014), (3, 6266676), (4, 4700007), (6, 3133338), (9, 2088892), (12, 1566669), (13, 1446156), (17, 1105884), (18, 1044446), (26, 723078), (34, 552942), (36, 522223), (39, 482052), (51, 368628), (52, 361539), (68, 276471), (78, 241026), (102, 184314), (117, 160684), (139, 135252), (153, 122876), (156, 120513), (204, 92157), (221, 85068), (234, 80342), (278, 67626), (289, 65052), (306, 61438), (417, 45084), (442, 42534), (468, 40171), (556, 33813), (578, 32526), (612, 30719), (663, 28356), (834, 22542), (867, 21684), (884, 21267), (1156, 16263), (1251, 15028), (1326, 14178), (1668, 11271), (1734, 10842), (1807, 10404), (1989, 9452), (2363, 7956), (2502, 7514), (2601, 7228), (2652, 7089), (3468, 5421), (3614, 5202), (3757, 5004), (3978, 4726)]