215505920

素因数分解:

$2^{10}\times 5^1\times 7^2\times {\mathrm{859}}^1$

素因数の和:898

約数の個数: 132

約数和(自身を含む): 602063640

約数和(自身を除く): 386557720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 512, 560, 640, 784, 859, 896, 980, 1024, 1120, 1280, 1568, 1718, 1792, 1960, 2240, 2560, 3136, 3436, 3584, 3920, 4295, 4480, 5120, 6013, 6272, 6872, 7168, 7840, 8590, 8960, 12026, 12544, 13744, 15680, 17180, 17920, 24052, 25088, 27488, 30065, 31360, 34360, 35840, 42091, 48104, 50176, 54976, 60130, 62720, 68720, 84182, 96208, 109952, 120260, 125440, 137440, 168364, 192416, 210455, 219904, 240520, 250880, 274880, 336728, 384832, 420910, 439808, 481040, 549760, 673456, 769664, 841820, 879616, 962080, 1099520, 1346912, 1539328, 1683640, 1924160, 2199040, 2693824, 3078656, 3367280, 3848320, 4398080, 5387648, 6157312, 6734560, 7696640, 10775296, 13469120, 15393280, 21550592, 26938240, 30786560, 43101184, 53876480, 107752960, 215505920]

約数ペア:

[(1, 215505920), (2, 107752960), (4, 53876480), (5, 43101184), (7, 30786560), (8, 26938240), (10, 21550592), (14, 15393280), (16, 13469120), (20, 10775296), (28, 7696640), (32, 6734560), (35, 6157312), (40, 5387648), (49, 4398080), (56, 3848320), (64, 3367280), (70, 3078656), (80, 2693824), (98, 2199040), (112, 1924160), (128, 1683640), (140, 1539328), (160, 1346912), (196, 1099520), (224, 962080), (245, 879616), (256, 841820), (280, 769664), (320, 673456), (392, 549760), (448, 481040), (490, 439808), (512, 420910), (560, 384832), (640, 336728), (784, 274880), (859, 250880), (896, 240520), (980, 219904), (1024, 210455), (1120, 192416), (1280, 168364), (1568, 137440), (1718, 125440), (1792, 120260), (1960, 109952), (2240, 96208), (2560, 84182), (3136, 68720), (3436, 62720), (3584, 60130), (3920, 54976), (4295, 50176), (4480, 48104), (5120, 42091), (6013, 35840), (6272, 34360), (6872, 31360), (7168, 30065), (7840, 27488), (8590, 25088), (8960, 24052), (12026, 17920), (12544, 17180), (13744, 15680)]