20664504

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:274

約数の個数: 128

約数和(自身を含む): 66816000

約数和(自身を除く): 46151496

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 79, 84, 108, 126, 158, 168, 173, 189, 216, 237, 252, 316, 346, 378, 474, 504, 519, 553, 632, 692, 711, 756, 948, 1038, 1106, 1211, 1384, 1422, 1512, 1557, 1659, 1896, 2076, 2133, 2212, 2422, 2844, 3114, 3318, 3633, 4152, 4266, 4424, 4671, 4844, 4977, 5688, 6228, 6636, 7266, 8532, 9342, 9688, 9954, 10899, 12456, 13272, 13667, 14532, 14931, 17064, 18684, 19908, 21798, 27334, 29064, 29862, 32697, 37368, 39816, 41001, 43596, 54668, 59724, 65394, 82002, 87192, 95669, 109336, 119448, 123003, 130788, 164004, 191338, 246006, 261576, 287007, 328008, 369009, 382676, 492012, 574014, 738018, 765352, 861021, 984024, 1148028, 1476036, 1722042, 2296056, 2583063, 2952072, 3444084, 5166126, 6888168, 10332252, 20664504]

約数ペア:

[(1, 20664504), (2, 10332252), (3, 6888168), (4, 5166126), (6, 3444084), (7, 2952072), (8, 2583063), (9, 2296056), (12, 1722042), (14, 1476036), (18, 1148028), (21, 984024), (24, 861021), (27, 765352), (28, 738018), (36, 574014), (42, 492012), (54, 382676), (56, 369009), (63, 328008), (72, 287007), (79, 261576), (84, 246006), (108, 191338), (126, 164004), (158, 130788), (168, 123003), (173, 119448), (189, 109336), (216, 95669), (237, 87192), (252, 82002), (316, 65394), (346, 59724), (378, 54668), (474, 43596), (504, 41001), (519, 39816), (553, 37368), (632, 32697), (692, 29862), (711, 29064), (756, 27334), (948, 21798), (1038, 19908), (1106, 18684), (1211, 17064), (1384, 14931), (1422, 14532), (1512, 13667), (1557, 13272), (1659, 12456), (1896, 10899), (2076, 9954), (2133, 9688), (2212, 9342), (2422, 8532), (2844, 7266), (3114, 6636), (3318, 6228), (3633, 5688), (4152, 4977), (4266, 4844), (4424, 4671)]