20110428

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{443}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 55434288

約数和(自身を除く): 35323860

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 97, 117, 156, 194, 234, 291, 388, 443, 468, 582, 873, 886, 1164, 1261, 1329, 1746, 1772, 2522, 2658, 3492, 3783, 3987, 5044, 5316, 5759, 7566, 7974, 11349, 11518, 15132, 15948, 17277, 22698, 23036, 34554, 42971, 45396, 51831, 69108, 85942, 103662, 128913, 171884, 207324, 257826, 386739, 515652, 558623, 773478, 1117246, 1546956, 1675869, 2234492, 3351738, 5027607, 6703476, 10055214, 20110428]

約数ペア:

[(1, 20110428), (2, 10055214), (3, 6703476), (4, 5027607), (6, 3351738), (9, 2234492), (12, 1675869), (13, 1546956), (18, 1117246), (26, 773478), (36, 558623), (39, 515652), (52, 386739), (78, 257826), (97, 207324), (117, 171884), (156, 128913), (194, 103662), (234, 85942), (291, 69108), (388, 51831), (443, 45396), (468, 42971), (582, 34554), (873, 23036), (886, 22698), (1164, 17277), (1261, 15948), (1329, 15132), (1746, 11518), (1772, 11349), (2522, 7974), (2658, 7566), (3492, 5759), (3783, 5316), (3987, 5044)]