20377968

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{113}}^1$

素因数の和:171

約数の個数: 120

約数和(自身を含む): 60756528

約数和(自身を除く): 40378560

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 34, 39, 48, 51, 52, 68, 78, 102, 104, 113, 136, 156, 204, 208, 221, 226, 272, 289, 312, 339, 408, 442, 452, 578, 624, 663, 678, 816, 867, 884, 904, 1156, 1326, 1356, 1469, 1734, 1768, 1808, 1921, 2312, 2652, 2712, 2938, 3468, 3536, 3757, 3842, 4407, 4624, 5304, 5424, 5763, 5876, 6936, 7514, 7684, 8814, 10608, 11271, 11526, 11752, 13872, 15028, 15368, 17628, 22542, 23052, 23504, 24973, 30056, 30736, 32657, 35256, 45084, 46104, 49946, 60112, 65314, 70512, 74919, 90168, 92208, 97971, 99892, 130628, 149838, 180336, 195942, 199784, 261256, 299676, 391884, 399568, 424541, 522512, 599352, 783768, 849082, 1198704, 1273623, 1567536, 1698164, 2547246, 3396328, 5094492, 6792656, 10188984, 20377968]

約数ペア:

[(1, 20377968), (2, 10188984), (3, 6792656), (4, 5094492), (6, 3396328), (8, 2547246), (12, 1698164), (13, 1567536), (16, 1273623), (17, 1198704), (24, 849082), (26, 783768), (34, 599352), (39, 522512), (48, 424541), (51, 399568), (52, 391884), (68, 299676), (78, 261256), (102, 199784), (104, 195942), (113, 180336), (136, 149838), (156, 130628), (204, 99892), (208, 97971), (221, 92208), (226, 90168), (272, 74919), (289, 70512), (312, 65314), (339, 60112), (408, 49946), (442, 46104), (452, 45084), (578, 35256), (624, 32657), (663, 30736), (678, 30056), (816, 24973), (867, 23504), (884, 23052), (904, 22542), (1156, 17628), (1326, 15368), (1356, 15028), (1469, 13872), (1734, 11752), (1768, 11526), (1808, 11271), (1921, 10608), (2312, 8814), (2652, 7684), (2712, 7514), (2938, 6936), (3468, 5876), (3536, 5763), (3757, 5424), (3842, 5304), (4407, 4624)]