127214720

素因数分解:

$2^7\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1009}}^1$

素因数の和:1225

約数の個数: 64

約数和(自身を含む): 305969400

約数和(自身を除く): 178754680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 197, 320, 394, 640, 788, 985, 1009, 1576, 1970, 2018, 3152, 3940, 4036, 5045, 6304, 7880, 8072, 10090, 12608, 15760, 16144, 20180, 25216, 31520, 32288, 40360, 63040, 64576, 80720, 126080, 129152, 161440, 198773, 322880, 397546, 645760, 795092, 993865, 1590184, 1987730, 3180368, 3975460, 6360736, 7950920, 12721472, 15901840, 25442944, 31803680, 63607360, 127214720]

約数ペア:

[(1, 127214720), (2, 63607360), (4, 31803680), (5, 25442944), (8, 15901840), (10, 12721472), (16, 7950920), (20, 6360736), (32, 3975460), (40, 3180368), (64, 1987730), (80, 1590184), (128, 993865), (160, 795092), (197, 645760), (320, 397546), (394, 322880), (640, 198773), (788, 161440), (985, 129152), (1009, 126080), (1576, 80720), (1970, 64576), (2018, 63040), (3152, 40360), (3940, 32288), (4036, 31520), (5045, 25216), (6304, 20180), (7880, 16144), (8072, 15760), (10090, 12608)]