18885785940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{14988719}}^1$

素因数の和:14988741

約数の個数: 72

約数和(自身を含む): 65470728960

約数和(自身を除く): 46584943020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 14988719, 29977438, 44966157, 59954876, 74943595, 89932314, 104921033, 134898471, 149887190, 179864628, 209842066, 224830785, 269796942, 299774380, 314763099, 419684132, 449661570, 524605165, 539593884, 629526198, 674492355, 899323140, 944289297, 1049210330, 1259052396, 1348984710, 1573815495, 1888578594, 2098420660, 2697969420, 3147630990, 3777157188, 4721446485, 6295261980, 9442892970, 18885785940]

約数ペア:

[(1, 18885785940), (2, 9442892970), (3, 6295261980), (4, 4721446485), (5, 3777157188), (6, 3147630990), (7, 2697969420), (9, 2098420660), (10, 1888578594), (12, 1573815495), (14, 1348984710), (15, 1259052396), (18, 1049210330), (20, 944289297), (21, 899323140), (28, 674492355), (30, 629526198), (35, 539593884), (36, 524605165), (42, 449661570), (45, 419684132), (60, 314763099), (63, 299774380), (70, 269796942), (84, 224830785), (90, 209842066), (105, 179864628), (126, 149887190), (140, 134898471), (180, 104921033), (210, 89932314), (252, 74943595), (315, 59954876), (420, 44966157), (630, 29977438), (1260, 14988719)]