1639040

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:229

約数の個数: 64

約数和(自身を含む): 4241160

約数和(自身を除く): 2602120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 197, 208, 260, 320, 394, 416, 520, 640, 788, 832, 985, 1040, 1576, 1664, 1970, 2080, 2561, 3152, 3940, 4160, 5122, 6304, 7880, 8320, 10244, 12608, 12805, 15760, 20488, 25216, 25610, 31520, 40976, 51220, 63040, 81952, 102440, 126080, 163904, 204880, 327808, 409760, 819520, 1639040]

約数ペア:

[(1, 1639040), (2, 819520), (4, 409760), (5, 327808), (8, 204880), (10, 163904), (13, 126080), (16, 102440), (20, 81952), (26, 63040), (32, 51220), (40, 40976), (52, 31520), (64, 25610), (65, 25216), (80, 20488), (104, 15760), (128, 12805), (130, 12608), (160, 10244), (197, 8320), (208, 7880), (260, 6304), (320, 5122), (394, 4160), (416, 3940), (520, 3152), (640, 2561), (788, 2080), (832, 1970), (985, 1664), (1040, 1576)]