128564240

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{32797}}^1$

素因数の和:32824

約数の個数: 60

約数和(自身を含む): 347724396

約数和(自身を除く): 219160156

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 32797, 65594, 131188, 163985, 229579, 262376, 327970, 459158, 524752, 655940, 918316, 1147895, 1311880, 1607053, 1836632, 2295790, 2623760, 3214106, 3673264, 4591580, 6428212, 8035265, 9183160, 12856424, 16070530, 18366320, 25712848, 32141060, 64282120, 128564240]

約数ペア:

[(1, 128564240), (2, 64282120), (4, 32141060), (5, 25712848), (7, 18366320), (8, 16070530), (10, 12856424), (14, 9183160), (16, 8035265), (20, 6428212), (28, 4591580), (35, 3673264), (40, 3214106), (49, 2623760), (56, 2295790), (70, 1836632), (80, 1607053), (98, 1311880), (112, 1147895), (140, 918316), (196, 655940), (245, 524752), (280, 459158), (392, 327970), (490, 262376), (560, 229579), (784, 163985), (980, 131188), (1960, 65594), (3920, 32797)]