81035640

素因数分解:

$2^3\times 3^6\times 5^1\times 7^1\times {\mathrm{397}}^1$

素因数の和:433

約数の個数: 224

約数和(自身を含む): 313210080

約数和(自身を除く): 232174440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 243, 252, 270, 280, 315, 324, 360, 378, 397, 405, 420, 486, 504, 540, 567, 630, 648, 729, 756, 794, 810, 840, 945, 972, 1080, 1134, 1191, 1215, 1260, 1458, 1512, 1588, 1620, 1701, 1890, 1944, 1985, 2268, 2382, 2430, 2520, 2779, 2835, 2916, 3176, 3240, 3402, 3573, 3645, 3780, 3970, 4536, 4764, 4860, 5103, 5558, 5670, 5832, 5955, 6804, 7146, 7290, 7560, 7940, 8337, 8505, 9528, 9720, 10206, 10719, 11116, 11340, 11910, 13608, 13895, 14292, 14580, 15880, 16674, 17010, 17865, 20412, 21438, 22232, 22680, 23820, 25011, 25515, 27790, 28584, 29160, 32157, 33348, 34020, 35730, 40824, 41685, 42876, 47640, 50022, 51030, 53595, 55580, 64314, 66696, 68040, 71460, 75033, 83370, 85752, 96471, 100044, 102060, 107190, 111160, 125055, 128628, 142920, 150066, 160785, 166740, 192942, 200088, 204120, 214380, 225099, 250110, 257256, 289413, 300132, 321570, 333480, 375165, 385884, 428760, 450198, 482355, 500220, 578826, 600264, 643140, 675297, 750330, 771768, 900396, 964710, 1000440, 1125495, 1157652, 1286280, 1350594, 1447065, 1500660, 1800792, 1929420, 2025891, 2250990, 2315304, 2701188, 2894130, 3001320, 3376485, 3858840, 4051782, 4501980, 5402376, 5788260, 6752970, 8103564, 9003960, 10129455, 11576520, 13505940, 16207128, 20258910, 27011880, 40517820, 81035640]

約数ペア:

[(1, 81035640), (2, 40517820), (3, 27011880), (4, 20258910), (5, 16207128), (6, 13505940), (7, 11576520), (8, 10129455), (9, 9003960), (10, 8103564), (12, 6752970), (14, 5788260), (15, 5402376), (18, 4501980), (20, 4051782), (21, 3858840), (24, 3376485), (27, 3001320), (28, 2894130), (30, 2701188), (35, 2315304), (36, 2250990), (40, 2025891), (42, 1929420), (45, 1800792), (54, 1500660), (56, 1447065), (60, 1350594), (63, 1286280), (70, 1157652), (72, 1125495), (81, 1000440), (84, 964710), (90, 900396), (105, 771768), (108, 750330), (120, 675297), (126, 643140), (135, 600264), (140, 578826), (162, 500220), (168, 482355), (180, 450198), (189, 428760), (210, 385884), (216, 375165), (243, 333480), (252, 321570), (270, 300132), (280, 289413), (315, 257256), (324, 250110), (360, 225099), (378, 214380), (397, 204120), (405, 200088), (420, 192942), (486, 166740), (504, 160785), (540, 150066), (567, 142920), (630, 128628), (648, 125055), (729, 111160), (756, 107190), (794, 102060), (810, 100044), (840, 96471), (945, 85752), (972, 83370), (1080, 75033), (1134, 71460), (1191, 68040), (1215, 66696), (1260, 64314), (1458, 55580), (1512, 53595), (1588, 51030), (1620, 50022), (1701, 47640), (1890, 42876), (1944, 41685), (1985, 40824), (2268, 35730), (2382, 34020), (2430, 33348), (2520, 32157), (2779, 29160), (2835, 28584), (2916, 27790), (3176, 25515), (3240, 25011), (3402, 23820), (3573, 22680), (3645, 22232), (3780, 21438), (3970, 20412), (4536, 17865), (4764, 17010), (4860, 16674), (5103, 15880), (5558, 14580), (5670, 14292), (5832, 13895), (5955, 13608), (6804, 11910), (7146, 11340), (7290, 11116), (7560, 10719), (7940, 10206), (8337, 9720), (8505, 9528)]