208765540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{11689}}^1$

素因数の和:11764

約数の個数: 48

約数和(自身を含む): 471340800

約数和(自身を除く): 262575260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1786, 3572, 4465, 8930, 11689, 17860, 23378, 46756, 58445, 116890, 222091, 233780, 444182, 549383, 888364, 1098766, 1110455, 2197532, 2220910, 2746915, 4441820, 5493830, 10438277, 10987660, 20876554, 41753108, 52191385, 104382770, 208765540]

約数ペア:

[(1, 208765540), (2, 104382770), (4, 52191385), (5, 41753108), (10, 20876554), (19, 10987660), (20, 10438277), (38, 5493830), (47, 4441820), (76, 2746915), (94, 2220910), (95, 2197532), (188, 1110455), (190, 1098766), (235, 888364), (380, 549383), (470, 444182), (893, 233780), (940, 222091), (1786, 116890), (3572, 58445), (4465, 46756), (8930, 23378), (11689, 17860)]