28008640

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:210

約数の個数: 112

約数和(自身を含む): 74432160

約数和(自身を除く): 46423520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 73, 80, 88, 109, 110, 146, 160, 176, 218, 220, 292, 320, 352, 365, 436, 440, 545, 584, 704, 730, 803, 872, 880, 1090, 1168, 1199, 1460, 1606, 1744, 1760, 2180, 2336, 2398, 2920, 3212, 3488, 3520, 4015, 4360, 4672, 4796, 5840, 5995, 6424, 6976, 7957, 8030, 8720, 9592, 11680, 11990, 12848, 15914, 16060, 17440, 19184, 23360, 23980, 25696, 31828, 32120, 34880, 38368, 39785, 47960, 51392, 63656, 64240, 76736, 79570, 87527, 95920, 127312, 128480, 159140, 175054, 191840, 254624, 256960, 318280, 350108, 383680, 437635, 509248, 636560, 700216, 875270, 1273120, 1400432, 1750540, 2546240, 2800864, 3501080, 5601728, 7002160, 14004320, 28008640]

約数ペア:

[(1, 28008640), (2, 14004320), (4, 7002160), (5, 5601728), (8, 3501080), (10, 2800864), (11, 2546240), (16, 1750540), (20, 1400432), (22, 1273120), (32, 875270), (40, 700216), (44, 636560), (55, 509248), (64, 437635), (73, 383680), (80, 350108), (88, 318280), (109, 256960), (110, 254624), (146, 191840), (160, 175054), (176, 159140), (218, 128480), (220, 127312), (292, 95920), (320, 87527), (352, 79570), (365, 76736), (436, 64240), (440, 63656), (545, 51392), (584, 47960), (704, 39785), (730, 38368), (803, 34880), (872, 32120), (880, 31828), (1090, 25696), (1168, 23980), (1199, 23360), (1460, 19184), (1606, 17440), (1744, 16060), (1760, 15914), (2180, 12848), (2336, 11990), (2398, 11680), (2920, 9592), (3212, 8720), (3488, 8030), (3520, 7957), (4015, 6976), (4360, 6424), (4672, 5995), (4796, 5840)]