18078880

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^2\times {\mathrm{313}}^1$

素因数の和:366

約数の個数: 72

約数和(自身を含む): 45221652

約数和(自身を除く): 27142772

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 313, 361, 380, 608, 626, 722, 760, 1252, 1444, 1520, 1565, 1805, 2504, 2888, 3040, 3130, 3610, 5008, 5776, 5947, 6260, 7220, 10016, 11552, 11894, 12520, 14440, 23788, 25040, 28880, 29735, 47576, 50080, 57760, 59470, 95152, 112993, 118940, 190304, 225986, 237880, 451972, 475760, 564965, 903944, 951520, 1129930, 1807888, 2259860, 3615776, 4519720, 9039440, 18078880]

約数ペア:

[(1, 18078880), (2, 9039440), (4, 4519720), (5, 3615776), (8, 2259860), (10, 1807888), (16, 1129930), (19, 951520), (20, 903944), (32, 564965), (38, 475760), (40, 451972), (76, 237880), (80, 225986), (95, 190304), (152, 118940), (160, 112993), (190, 95152), (304, 59470), (313, 57760), (361, 50080), (380, 47576), (608, 29735), (626, 28880), (722, 25040), (760, 23788), (1252, 14440), (1444, 12520), (1520, 11894), (1565, 11552), (1805, 10016), (2504, 7220), (2888, 6260), (3040, 5947), (3130, 5776), (3610, 5008)]