320878320

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{491}}^1$

素因数の和:903

約数の個数: 160

約数和(自身を含む): 1142069760

約数和(自身を除く): 821191440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 389, 420, 491, 560, 778, 840, 982, 1167, 1473, 1556, 1680, 1945, 1964, 2334, 2455, 2723, 2946, 3112, 3437, 3890, 3928, 4668, 4910, 5446, 5835, 5892, 6224, 6874, 7365, 7780, 7856, 8169, 9336, 9820, 10311, 10892, 11670, 11784, 13615, 13748, 14730, 15560, 16338, 17185, 18672, 19640, 20622, 21784, 23340, 23568, 27230, 27496, 29460, 31120, 32676, 34370, 39280, 40845, 41244, 43568, 46680, 51555, 54460, 54992, 58920, 65352, 68740, 81690, 82488, 93360, 103110, 108920, 117840, 130704, 137480, 163380, 164976, 190999, 206220, 217840, 274960, 326760, 381998, 412440, 572997, 653520, 763996, 824880, 954995, 1145994, 1336993, 1527992, 1909990, 2291988, 2673986, 2864985, 3055984, 3819980, 4010979, 4583976, 5347972, 5729970, 6684965, 7639960, 8021958, 9167952, 10695944, 11459940, 13369930, 15279920, 16043916, 20054895, 21391888, 22919880, 26739860, 32087832, 40109790, 45839760, 53479720, 64175664, 80219580, 106959440, 160439160, 320878320]

約数ペア:

[(1, 320878320), (2, 160439160), (3, 106959440), (4, 80219580), (5, 64175664), (6, 53479720), (7, 45839760), (8, 40109790), (10, 32087832), (12, 26739860), (14, 22919880), (15, 21391888), (16, 20054895), (20, 16043916), (21, 15279920), (24, 13369930), (28, 11459940), (30, 10695944), (35, 9167952), (40, 8021958), (42, 7639960), (48, 6684965), (56, 5729970), (60, 5347972), (70, 4583976), (80, 4010979), (84, 3819980), (105, 3055984), (112, 2864985), (120, 2673986), (140, 2291988), (168, 1909990), (210, 1527992), (240, 1336993), (280, 1145994), (336, 954995), (389, 824880), (420, 763996), (491, 653520), (560, 572997), (778, 412440), (840, 381998), (982, 326760), (1167, 274960), (1473, 217840), (1556, 206220), (1680, 190999), (1945, 164976), (1964, 163380), (2334, 137480), (2455, 130704), (2723, 117840), (2946, 108920), (3112, 103110), (3437, 93360), (3890, 82488), (3928, 81690), (4668, 68740), (4910, 65352), (5446, 58920), (5835, 54992), (5892, 54460), (6224, 51555), (6874, 46680), (7365, 43568), (7780, 41244), (7856, 40845), (8169, 39280), (9336, 34370), (9820, 32676), (10311, 31120), (10892, 29460), (11670, 27496), (11784, 27230), (13615, 23568), (13748, 23340), (14730, 21784), (15560, 20622), (16338, 19640), (17185, 18672)]