247191660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{6971}}^1$

素因数の和:7183

約数の個数: 72

約数和(自身を含む): 753728976

約数和(自身を除く): 506537316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 394, 591, 788, 985, 1182, 1773, 1970, 2364, 2955, 3546, 3940, 5910, 6971, 7092, 8865, 11820, 13942, 17730, 20913, 27884, 34855, 35460, 41826, 62739, 69710, 83652, 104565, 125478, 139420, 209130, 250956, 313695, 418260, 627390, 1254780, 1373287, 2746574, 4119861, 5493148, 6866435, 8239722, 12359583, 13732870, 16479444, 20599305, 24719166, 27465740, 41198610, 49438332, 61797915, 82397220, 123595830, 247191660]

約数ペア:

[(1, 247191660), (2, 123595830), (3, 82397220), (4, 61797915), (5, 49438332), (6, 41198610), (9, 27465740), (10, 24719166), (12, 20599305), (15, 16479444), (18, 13732870), (20, 12359583), (30, 8239722), (36, 6866435), (45, 5493148), (60, 4119861), (90, 2746574), (180, 1373287), (197, 1254780), (394, 627390), (591, 418260), (788, 313695), (985, 250956), (1182, 209130), (1773, 139420), (1970, 125478), (2364, 104565), (2955, 83652), (3546, 69710), (3940, 62739), (5910, 41826), (6971, 35460), (7092, 34855), (8865, 27884), (11820, 20913), (13942, 17730)]