127531520

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1607}}^1$

素因数の和:1661

約数の個数: 80

約数和(自身を含む): 315836928

約数和(自身を除く): 188305408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1607, 1984, 2480, 2560, 3214, 3968, 4960, 6428, 7936, 8035, 9920, 12856, 15872, 16070, 19840, 25712, 32140, 39680, 49817, 51424, 64280, 79360, 99634, 102848, 128560, 199268, 205696, 249085, 257120, 398536, 411392, 498170, 514240, 797072, 822784, 996340, 1028480, 1594144, 1992680, 2056960, 3188288, 3985360, 4113920, 6376576, 7970720, 12753152, 15941440, 25506304, 31882880, 63765760, 127531520]

約数ペア:

[(1, 127531520), (2, 63765760), (4, 31882880), (5, 25506304), (8, 15941440), (10, 12753152), (16, 7970720), (20, 6376576), (31, 4113920), (32, 3985360), (40, 3188288), (62, 2056960), (64, 1992680), (80, 1594144), (124, 1028480), (128, 996340), (155, 822784), (160, 797072), (248, 514240), (256, 498170), (310, 411392), (320, 398536), (496, 257120), (512, 249085), (620, 205696), (640, 199268), (992, 128560), (1240, 102848), (1280, 99634), (1607, 79360), (1984, 64280), (2480, 51424), (2560, 49817), (3214, 39680), (3968, 32140), (4960, 25712), (6428, 19840), (7936, 16070), (8035, 15872), (9920, 12856)]