20027216

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:204

約数の個数: 80

約数和(自身を含む): 45800640

約数和(自身を除く): 25773424

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 53, 76, 88, 106, 113, 152, 176, 209, 212, 226, 304, 418, 424, 452, 583, 836, 848, 904, 1007, 1166, 1243, 1672, 1808, 2014, 2147, 2332, 2486, 3344, 4028, 4294, 4664, 4972, 5989, 8056, 8588, 9328, 9944, 11077, 11978, 16112, 17176, 19888, 22154, 23617, 23956, 34352, 44308, 47234, 47912, 65879, 88616, 94468, 95824, 113791, 131758, 177232, 188936, 227582, 263516, 377872, 455164, 527032, 910328, 1054064, 1251701, 1820656, 2503402, 5006804, 10013608, 20027216]

約数ペア:

[(1, 20027216), (2, 10013608), (4, 5006804), (8, 2503402), (11, 1820656), (16, 1251701), (19, 1054064), (22, 910328), (38, 527032), (44, 455164), (53, 377872), (76, 263516), (88, 227582), (106, 188936), (113, 177232), (152, 131758), (176, 113791), (209, 95824), (212, 94468), (226, 88616), (304, 65879), (418, 47912), (424, 47234), (452, 44308), (583, 34352), (836, 23956), (848, 23617), (904, 22154), (1007, 19888), (1166, 17176), (1243, 16112), (1672, 11978), (1808, 11077), (2014, 9944), (2147, 9328), (2332, 8588), (2486, 8056), (3344, 5989), (4028, 4972), (4294, 4664)]