644554368

素因数分解:

$2^7\times 3^3\times {\mathrm{421}}^1\times {\mathrm{443}}^1$

素因数の和:887

約数の個数: 128

約数和(自身を含む): 1911153600

約数和(自身を除く): 1266599232

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 128, 144, 192, 216, 288, 384, 421, 432, 443, 576, 842, 864, 886, 1152, 1263, 1329, 1684, 1728, 1772, 2526, 2658, 3368, 3456, 3544, 3789, 3987, 5052, 5316, 6736, 7088, 7578, 7974, 10104, 10632, 11367, 11961, 13472, 14176, 15156, 15948, 20208, 21264, 22734, 23922, 26944, 28352, 30312, 31896, 40416, 42528, 45468, 47844, 53888, 56704, 60624, 63792, 80832, 85056, 90936, 95688, 121248, 127584, 161664, 170112, 181872, 186503, 191376, 242496, 255168, 363744, 373006, 382752, 484992, 510336, 559509, 727488, 746012, 765504, 1119018, 1454976, 1492024, 1531008, 1678527, 2238036, 2984048, 3357054, 4476072, 5035581, 5968096, 6714108, 8952144, 10071162, 11936192, 13428216, 17904288, 20142324, 23872384, 26856432, 35808576, 40284648, 53712864, 71617152, 80569296, 107425728, 161138592, 214851456, 322277184, 644554368]

約数ペア:

[(1, 644554368), (2, 322277184), (3, 214851456), (4, 161138592), (6, 107425728), (8, 80569296), (9, 71617152), (12, 53712864), (16, 40284648), (18, 35808576), (24, 26856432), (27, 23872384), (32, 20142324), (36, 17904288), (48, 13428216), (54, 11936192), (64, 10071162), (72, 8952144), (96, 6714108), (108, 5968096), (128, 5035581), (144, 4476072), (192, 3357054), (216, 2984048), (288, 2238036), (384, 1678527), (421, 1531008), (432, 1492024), (443, 1454976), (576, 1119018), (842, 765504), (864, 746012), (886, 727488), (1152, 559509), (1263, 510336), (1329, 484992), (1684, 382752), (1728, 373006), (1772, 363744), (2526, 255168), (2658, 242496), (3368, 191376), (3456, 186503), (3544, 181872), (3789, 170112), (3987, 161664), (5052, 127584), (5316, 121248), (6736, 95688), (7088, 90936), (7578, 85056), (7974, 80832), (10104, 63792), (10632, 60624), (11367, 56704), (11961, 53888), (13472, 47844), (14176, 45468), (15156, 42528), (15948, 40416), (20208, 31896), (21264, 30312), (22734, 28352), (23922, 26944)]