205000640

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49279}}^1$

素因数の和:49309

約数の個数: 56

約数和(自身を含む): 525719040

約数和(自身を除く): 320718400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 49279, 98558, 197116, 246395, 394232, 492790, 640627, 788464, 985580, 1281254, 1576928, 1971160, 2562508, 3153856, 3203135, 3942320, 5125016, 6406270, 7884640, 10250032, 12812540, 15769280, 20500064, 25625080, 41000128, 51250160, 102500320, 205000640]

約数ペア:

[(1, 205000640), (2, 102500320), (4, 51250160), (5, 41000128), (8, 25625080), (10, 20500064), (13, 15769280), (16, 12812540), (20, 10250032), (26, 7884640), (32, 6406270), (40, 5125016), (52, 3942320), (64, 3203135), (65, 3153856), (80, 2562508), (104, 1971160), (130, 1576928), (160, 1281254), (208, 985580), (260, 788464), (320, 640627), (416, 492790), (520, 394232), (832, 246395), (1040, 197116), (2080, 98558), (4160, 49279)]