87980940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{5039}}^1$

素因数の和:5151

約数の個数: 72

約数和(自身を含む): 269680320

約数和(自身を除く): 181699380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 97, 180, 194, 291, 388, 485, 582, 873, 970, 1164, 1455, 1746, 1940, 2910, 3492, 4365, 5039, 5820, 8730, 10078, 15117, 17460, 20156, 25195, 30234, 45351, 50390, 60468, 75585, 90702, 100780, 151170, 181404, 226755, 302340, 453510, 488783, 907020, 977566, 1466349, 1955132, 2443915, 2932698, 4399047, 4887830, 5865396, 7331745, 8798094, 9775660, 14663490, 17596188, 21995235, 29326980, 43990470, 87980940]

約数ペア:

[(1, 87980940), (2, 43990470), (3, 29326980), (4, 21995235), (5, 17596188), (6, 14663490), (9, 9775660), (10, 8798094), (12, 7331745), (15, 5865396), (18, 4887830), (20, 4399047), (30, 2932698), (36, 2443915), (45, 1955132), (60, 1466349), (90, 977566), (97, 907020), (180, 488783), (194, 453510), (291, 302340), (388, 226755), (485, 181404), (582, 151170), (873, 100780), (970, 90702), (1164, 75585), (1455, 60468), (1746, 50390), (1940, 45351), (2910, 30234), (3492, 25195), (4365, 20156), (5039, 17460), (5820, 15117), (8730, 10078)]