1388154880

素因数分解:

$2^{12}\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:480

約数の個数: 208

約数和(自身を含む): 3982005504

約数和(自身を除く): 2593850624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 128, 140, 160, 161, 184, 224, 230, 256, 280, 320, 322, 368, 421, 448, 460, 512, 560, 640, 644, 736, 805, 842, 896, 920, 1024, 1120, 1280, 1288, 1472, 1610, 1684, 1792, 1840, 2048, 2105, 2240, 2560, 2576, 2944, 2947, 3220, 3368, 3584, 3680, 4096, 4210, 4480, 5120, 5152, 5888, 5894, 6440, 6736, 7168, 7360, 8420, 8960, 9683, 10240, 10304, 11776, 11788, 12880, 13472, 14336, 14720, 14735, 16840, 17920, 19366, 20480, 20608, 23552, 23576, 25760, 26944, 28672, 29440, 29470, 33680, 35840, 38732, 41216, 47104, 47152, 48415, 51520, 53888, 58880, 58940, 67360, 67781, 71680, 77464, 82432, 94208, 94304, 96830, 103040, 107776, 117760, 117880, 134720, 135562, 143360, 154928, 164864, 188608, 193660, 206080, 215552, 235520, 235760, 269440, 271124, 309856, 329728, 338905, 377216, 387320, 412160, 431104, 471040, 471520, 538880, 542248, 619712, 659456, 677810, 754432, 774640, 824320, 862208, 943040, 1077760, 1084496, 1239424, 1355620, 1508864, 1549280, 1648640, 1724416, 1886080, 2155520, 2168992, 2478848, 2711240, 3017728, 3098560, 3297280, 3772160, 4311040, 4337984, 4957696, 5422480, 6035456, 6197120, 7544320, 8622080, 8675968, 9915392, 10844960, 12070912, 12394240, 15088640, 17351936, 19830784, 21689920, 24788480, 30177280, 34703872, 39661568, 43379840, 49576960, 60354560, 69407744, 86759680, 99153920, 138815488, 173519360, 198307840, 277630976, 347038720, 694077440, 1388154880]

約数ペア:

[(1, 1388154880), (2, 694077440), (4, 347038720), (5, 277630976), (7, 198307840), (8, 173519360), (10, 138815488), (14, 99153920), (16, 86759680), (20, 69407744), (23, 60354560), (28, 49576960), (32, 43379840), (35, 39661568), (40, 34703872), (46, 30177280), (56, 24788480), (64, 21689920), (70, 19830784), (80, 17351936), (92, 15088640), (112, 12394240), (115, 12070912), (128, 10844960), (140, 9915392), (160, 8675968), (161, 8622080), (184, 7544320), (224, 6197120), (230, 6035456), (256, 5422480), (280, 4957696), (320, 4337984), (322, 4311040), (368, 3772160), (421, 3297280), (448, 3098560), (460, 3017728), (512, 2711240), (560, 2478848), (640, 2168992), (644, 2155520), (736, 1886080), (805, 1724416), (842, 1648640), (896, 1549280), (920, 1508864), (1024, 1355620), (1120, 1239424), (1280, 1084496), (1288, 1077760), (1472, 943040), (1610, 862208), (1684, 824320), (1792, 774640), (1840, 754432), (2048, 677810), (2105, 659456), (2240, 619712), (2560, 542248), (2576, 538880), (2944, 471520), (2947, 471040), (3220, 431104), (3368, 412160), (3584, 387320), (3680, 377216), (4096, 338905), (4210, 329728), (4480, 309856), (5120, 271124), (5152, 269440), (5888, 235760), (5894, 235520), (6440, 215552), (6736, 206080), (7168, 193660), (7360, 188608), (8420, 164864), (8960, 154928), (9683, 143360), (10240, 135562), (10304, 134720), (11776, 117880), (11788, 117760), (12880, 107776), (13472, 103040), (14336, 96830), (14720, 94304), (14735, 94208), (16840, 82432), (17920, 77464), (19366, 71680), (20480, 67781), (20608, 67360), (23552, 58940), (23576, 58880), (25760, 53888), (26944, 51520), (28672, 48415), (29440, 47152), (29470, 47104), (33680, 41216), (35840, 38732)]