80998680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{457}}^1$

素因数の和:689

約数の個数: 128

約数和(自身を含む): 279636480

約数和(自身を除く): 198637800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 211, 280, 420, 422, 457, 633, 840, 844, 914, 1055, 1266, 1371, 1477, 1688, 1828, 2110, 2285, 2532, 2742, 2954, 3165, 3199, 3656, 4220, 4431, 4570, 5064, 5484, 5908, 6330, 6398, 6855, 7385, 8440, 8862, 9140, 9597, 10968, 11816, 12660, 12796, 13710, 14770, 15995, 17724, 18280, 19194, 22155, 25320, 25592, 27420, 29540, 31990, 35448, 38388, 44310, 47985, 54840, 59080, 63980, 76776, 88620, 95970, 96427, 127960, 177240, 191940, 192854, 289281, 383880, 385708, 482135, 578562, 674989, 771416, 964270, 1157124, 1349978, 1446405, 1928540, 2024967, 2314248, 2699956, 2892810, 3374945, 3857080, 4049934, 5399912, 5785620, 6749890, 8099868, 10124835, 11571240, 13499780, 16199736, 20249670, 26999560, 40499340, 80998680]

約数ペア:

[(1, 80998680), (2, 40499340), (3, 26999560), (4, 20249670), (5, 16199736), (6, 13499780), (7, 11571240), (8, 10124835), (10, 8099868), (12, 6749890), (14, 5785620), (15, 5399912), (20, 4049934), (21, 3857080), (24, 3374945), (28, 2892810), (30, 2699956), (35, 2314248), (40, 2024967), (42, 1928540), (56, 1446405), (60, 1349978), (70, 1157124), (84, 964270), (105, 771416), (120, 674989), (140, 578562), (168, 482135), (210, 385708), (211, 383880), (280, 289281), (420, 192854), (422, 191940), (457, 177240), (633, 127960), (840, 96427), (844, 95970), (914, 88620), (1055, 76776), (1266, 63980), (1371, 59080), (1477, 54840), (1688, 47985), (1828, 44310), (2110, 38388), (2285, 35448), (2532, 31990), (2742, 29540), (2954, 27420), (3165, 25592), (3199, 25320), (3656, 22155), (4220, 19194), (4431, 18280), (4570, 17724), (5064, 15995), (5484, 14770), (5908, 13710), (6330, 12796), (6398, 12660), (6855, 11816), (7385, 10968), (8440, 9597), (8862, 9140)]