20158128536

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{350503}}^1$

素因数の和:350608

約数の個数: 64

約数和(自身を含む): 47107737600

約数和(自身を除く): 26949609064

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 79, 91, 104, 158, 182, 316, 364, 553, 632, 728, 1027, 1106, 2054, 2212, 4108, 4424, 7189, 8216, 14378, 28756, 57512, 350503, 701006, 1402012, 2453521, 2804024, 4556539, 4907042, 9113078, 9814084, 18226156, 19628168, 27689737, 31895773, 36452312, 55379474, 63791546, 110758948, 127583092, 193828159, 221517896, 255166184, 359966581, 387656318, 719933162, 775312636, 1439866324, 1550625272, 2519766067, 2879732648, 5039532134, 10079064268, 20158128536]

約数ペア:

[(1, 20158128536), (2, 10079064268), (4, 5039532134), (7, 2879732648), (8, 2519766067), (13, 1550625272), (14, 1439866324), (26, 775312636), (28, 719933162), (52, 387656318), (56, 359966581), (79, 255166184), (91, 221517896), (104, 193828159), (158, 127583092), (182, 110758948), (316, 63791546), (364, 55379474), (553, 36452312), (632, 31895773), (728, 27689737), (1027, 19628168), (1106, 18226156), (2054, 9814084), (2212, 9113078), (4108, 4907042), (4424, 4556539), (7189, 2804024), (8216, 2453521), (14378, 1402012), (28756, 701006), (57512, 350503)]