131139520

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21569}}^1$

素因数の和:21605

約数の個数: 56

約数和(自身を含む): 328726800

約数和(自身を除く): 197587280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 6080, 21569, 43138, 86276, 107845, 172552, 215690, 345104, 409811, 431380, 690208, 819622, 862760, 1380416, 1639244, 1725520, 2049055, 3278488, 3451040, 4098110, 6556976, 6902080, 8196220, 13113952, 16392440, 26227904, 32784880, 65569760, 131139520]

約数ペア:

[(1, 131139520), (2, 65569760), (4, 32784880), (5, 26227904), (8, 16392440), (10, 13113952), (16, 8196220), (19, 6902080), (20, 6556976), (32, 4098110), (38, 3451040), (40, 3278488), (64, 2049055), (76, 1725520), (80, 1639244), (95, 1380416), (152, 862760), (160, 819622), (190, 690208), (304, 431380), (320, 409811), (380, 345104), (608, 215690), (760, 172552), (1216, 107845), (1520, 86276), (3040, 43138), (6080, 21569)]