639559920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{10369}}^1$

素因数の和:10642

約数の個数: 80

約数和(自身を含む): 1990542240

約数和(自身を除く): 1350982320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 257, 514, 771, 1028, 1285, 1542, 2056, 2570, 3084, 3855, 4112, 5140, 6168, 7710, 10280, 10369, 12336, 15420, 20560, 20738, 30840, 31107, 41476, 51845, 61680, 62214, 82952, 103690, 124428, 155535, 165904, 207380, 248856, 311070, 414760, 497712, 622140, 829520, 1244280, 2488560, 2664833, 5329666, 7994499, 10659332, 13324165, 15988998, 21318664, 26648330, 31977996, 39972495, 42637328, 53296660, 63955992, 79944990, 106593320, 127911984, 159889980, 213186640, 319779960, 639559920]

約数ペア:

[(1, 639559920), (2, 319779960), (3, 213186640), (4, 159889980), (5, 127911984), (6, 106593320), (8, 79944990), (10, 63955992), (12, 53296660), (15, 42637328), (16, 39972495), (20, 31977996), (24, 26648330), (30, 21318664), (40, 15988998), (48, 13324165), (60, 10659332), (80, 7994499), (120, 5329666), (240, 2664833), (257, 2488560), (514, 1244280), (771, 829520), (1028, 622140), (1285, 497712), (1542, 414760), (2056, 311070), (2570, 248856), (3084, 207380), (3855, 165904), (4112, 155535), (5140, 124428), (6168, 103690), (7710, 82952), (10280, 62214), (10369, 61680), (12336, 51845), (15420, 41476), (20560, 31107), (20738, 30840)]