51293540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1\times {\mathrm{389}}^1$

素因数の和:764

約数の個数: 48

約数和(自身を含む): 114004800

約数和(自身を除く): 62711260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 347, 380, 389, 694, 778, 1388, 1556, 1735, 1945, 3470, 3890, 6593, 6940, 7391, 7780, 13186, 14782, 26372, 29564, 32965, 36955, 65930, 73910, 131860, 134983, 147820, 269966, 539932, 674915, 1349830, 2564677, 2699660, 5129354, 10258708, 12823385, 25646770, 51293540]

約数ペア:

[(1, 51293540), (2, 25646770), (4, 12823385), (5, 10258708), (10, 5129354), (19, 2699660), (20, 2564677), (38, 1349830), (76, 674915), (95, 539932), (190, 269966), (347, 147820), (380, 134983), (389, 131860), (694, 73910), (778, 65930), (1388, 36955), (1556, 32965), (1735, 29564), (1945, 26372), (3470, 14782), (3890, 13186), (6593, 7780), (6940, 7391)]