18336760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 44906400

約数和(自身を除く): 26569640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 179, 197, 260, 358, 394, 520, 716, 788, 895, 985, 1432, 1576, 1790, 1970, 2327, 2561, 3580, 3940, 4654, 5122, 7160, 7880, 9308, 10244, 11635, 12805, 18616, 20488, 23270, 25610, 35263, 46540, 51220, 70526, 93080, 102440, 141052, 176315, 282104, 352630, 458419, 705260, 916838, 1410520, 1833676, 2292095, 3667352, 4584190, 9168380, 18336760]

約数ペア:

[(1, 18336760), (2, 9168380), (4, 4584190), (5, 3667352), (8, 2292095), (10, 1833676), (13, 1410520), (20, 916838), (26, 705260), (40, 458419), (52, 352630), (65, 282104), (104, 176315), (130, 141052), (179, 102440), (197, 93080), (260, 70526), (358, 51220), (394, 46540), (520, 35263), (716, 25610), (788, 23270), (895, 20488), (985, 18616), (1432, 12805), (1576, 11635), (1790, 10244), (1970, 9308), (2327, 7880), (2561, 7160), (3580, 5122), (3940, 4654)]