19905912

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:187

約数の個数: 160

約数和(自身を含む): 64033200

約数和(自身を除く): 44127288

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 17, 18, 24, 26, 27, 34, 36, 39, 51, 52, 54, 68, 72, 78, 81, 102, 104, 108, 117, 136, 139, 153, 156, 162, 204, 216, 221, 234, 278, 306, 312, 324, 351, 408, 417, 442, 459, 468, 556, 612, 648, 663, 702, 834, 884, 918, 936, 1053, 1112, 1224, 1251, 1326, 1377, 1404, 1668, 1768, 1807, 1836, 1989, 2106, 2363, 2502, 2652, 2754, 2808, 3336, 3614, 3672, 3753, 3978, 4212, 4726, 5004, 5304, 5421, 5508, 5967, 7089, 7228, 7506, 7956, 8424, 9452, 10008, 10842, 11016, 11259, 11934, 14178, 14456, 15012, 15912, 16263, 17901, 18904, 21267, 21684, 22518, 23868, 28356, 30024, 30719, 32526, 35802, 42534, 43368, 45036, 47736, 48789, 56712, 61438, 63801, 65052, 71604, 85068, 90072, 92157, 97578, 122876, 127602, 130104, 143208, 146367, 170136, 184314, 191403, 195156, 245752, 255204, 276471, 292734, 368628, 382806, 390312, 510408, 552942, 585468, 737256, 765612, 829413, 1105884, 1170936, 1531224, 1658826, 2211768, 2488239, 3317652, 4976478, 6635304, 9952956, 19905912]

約数ペア:

[(1, 19905912), (2, 9952956), (3, 6635304), (4, 4976478), (6, 3317652), (8, 2488239), (9, 2211768), (12, 1658826), (13, 1531224), (17, 1170936), (18, 1105884), (24, 829413), (26, 765612), (27, 737256), (34, 585468), (36, 552942), (39, 510408), (51, 390312), (52, 382806), (54, 368628), (68, 292734), (72, 276471), (78, 255204), (81, 245752), (102, 195156), (104, 191403), (108, 184314), (117, 170136), (136, 146367), (139, 143208), (153, 130104), (156, 127602), (162, 122876), (204, 97578), (216, 92157), (221, 90072), (234, 85068), (278, 71604), (306, 65052), (312, 63801), (324, 61438), (351, 56712), (408, 48789), (417, 47736), (442, 45036), (459, 43368), (468, 42534), (556, 35802), (612, 32526), (648, 30719), (663, 30024), (702, 28356), (834, 23868), (884, 22518), (918, 21684), (936, 21267), (1053, 18904), (1112, 17901), (1224, 16263), (1251, 15912), (1326, 15012), (1377, 14456), (1404, 14178), (1668, 11934), (1768, 11259), (1807, 11016), (1836, 10842), (1989, 10008), (2106, 9452), (2363, 8424), (2502, 7956), (2652, 7506), (2754, 7228), (2808, 7089), (3336, 5967), (3614, 5508), (3672, 5421), (3753, 5304), (3978, 5004), (4212, 4726)]