19647760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{269}}^1$

素因数の和:376

約数の個数: 80

約数和(自身を含む): 50621760

約数和(自身を除く): 30974000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 83, 88, 110, 166, 176, 220, 269, 332, 415, 440, 538, 664, 830, 880, 913, 1076, 1328, 1345, 1660, 1826, 2152, 2690, 2959, 3320, 3652, 4304, 4565, 5380, 5918, 6640, 7304, 9130, 10760, 11836, 14608, 14795, 18260, 21520, 22327, 23672, 29590, 36520, 44654, 47344, 59180, 73040, 89308, 111635, 118360, 178616, 223270, 236720, 245597, 357232, 446540, 491194, 893080, 982388, 1227985, 1786160, 1964776, 2455970, 3929552, 4911940, 9823880, 19647760]

約数ペア:

[(1, 19647760), (2, 9823880), (4, 4911940), (5, 3929552), (8, 2455970), (10, 1964776), (11, 1786160), (16, 1227985), (20, 982388), (22, 893080), (40, 491194), (44, 446540), (55, 357232), (80, 245597), (83, 236720), (88, 223270), (110, 178616), (166, 118360), (176, 111635), (220, 89308), (269, 73040), (332, 59180), (415, 47344), (440, 44654), (538, 36520), (664, 29590), (830, 23672), (880, 22327), (913, 21520), (1076, 18260), (1328, 14795), (1345, 14608), (1660, 11836), (1826, 10760), (2152, 9130), (2690, 7304), (2959, 6640), (3320, 5918), (3652, 5380), (4304, 4565)]