18223280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{631}}^1$

素因数の和:682

約数の個数: 60

約数和(自身を含む): 44787312

約数和(自身を除く): 26564032

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 631, 722, 760, 1262, 1444, 1520, 1805, 2524, 2888, 3155, 3610, 5048, 5776, 6310, 7220, 10096, 11989, 12620, 14440, 23978, 25240, 28880, 47956, 50480, 59945, 95912, 119890, 191824, 227791, 239780, 455582, 479560, 911164, 959120, 1138955, 1822328, 2277910, 3644656, 4555820, 9111640, 18223280]

約数ペア:

[(1, 18223280), (2, 9111640), (4, 4555820), (5, 3644656), (8, 2277910), (10, 1822328), (16, 1138955), (19, 959120), (20, 911164), (38, 479560), (40, 455582), (76, 239780), (80, 227791), (95, 191824), (152, 119890), (190, 95912), (304, 59945), (361, 50480), (380, 47956), (631, 28880), (722, 25240), (760, 23978), (1262, 14440), (1444, 12620), (1520, 11989), (1805, 10096), (2524, 7220), (2888, 6310), (3155, 5776), (3610, 5048)]