16185520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:302

約数の個数: 80

約数和(自身を含む): 41247360

約数和(自身を除く): 25061840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 79, 80, 104, 130, 158, 197, 208, 260, 316, 394, 395, 520, 632, 788, 790, 985, 1027, 1040, 1264, 1576, 1580, 1970, 2054, 2561, 3152, 3160, 3940, 4108, 5122, 5135, 6320, 7880, 8216, 10244, 10270, 12805, 15563, 15760, 16432, 20488, 20540, 25610, 31126, 40976, 41080, 51220, 62252, 77815, 82160, 102440, 124504, 155630, 202319, 204880, 249008, 311260, 404638, 622520, 809276, 1011595, 1245040, 1618552, 2023190, 3237104, 4046380, 8092760, 16185520]

約数ペア:

[(1, 16185520), (2, 8092760), (4, 4046380), (5, 3237104), (8, 2023190), (10, 1618552), (13, 1245040), (16, 1011595), (20, 809276), (26, 622520), (40, 404638), (52, 311260), (65, 249008), (79, 204880), (80, 202319), (104, 155630), (130, 124504), (158, 102440), (197, 82160), (208, 77815), (260, 62252), (316, 51220), (394, 41080), (395, 40976), (520, 31126), (632, 25610), (788, 20540), (790, 20488), (985, 16432), (1027, 15760), (1040, 15563), (1264, 12805), (1576, 10270), (1580, 10244), (1970, 8216), (2054, 7880), (2561, 6320), (3152, 5135), (3160, 5122), (3940, 4108)]