25223120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:412

約数の個数: 80

約数和(自身を含む): 64162560

約数和(自身を除く): 38939440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 79, 80, 104, 130, 158, 208, 260, 307, 316, 395, 520, 614, 632, 790, 1027, 1040, 1228, 1264, 1535, 1580, 2054, 2456, 3070, 3160, 3991, 4108, 4912, 5135, 6140, 6320, 7982, 8216, 10270, 12280, 15964, 16432, 19955, 20540, 24253, 24560, 31928, 39910, 41080, 48506, 63856, 79820, 82160, 97012, 121265, 159640, 194024, 242530, 315289, 319280, 388048, 485060, 630578, 970120, 1261156, 1576445, 1940240, 2522312, 3152890, 5044624, 6305780, 12611560, 25223120]

約数ペア:

[(1, 25223120), (2, 12611560), (4, 6305780), (5, 5044624), (8, 3152890), (10, 2522312), (13, 1940240), (16, 1576445), (20, 1261156), (26, 970120), (40, 630578), (52, 485060), (65, 388048), (79, 319280), (80, 315289), (104, 242530), (130, 194024), (158, 159640), (208, 121265), (260, 97012), (307, 82160), (316, 79820), (395, 63856), (520, 48506), (614, 41080), (632, 39910), (790, 31928), (1027, 24560), (1040, 24253), (1228, 20540), (1264, 19955), (1535, 16432), (1580, 15964), (2054, 12280), (2456, 10270), (3070, 8216), (3160, 7982), (3991, 6320), (4108, 6140), (4912, 5135)]