18249272

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 37033200

約数和(自身を除く): 18783928

約数列:

[1, 2, 4, 8, 19, 38, 71, 76, 89, 142, 152, 178, 284, 356, 361, 568, 712, 722, 1349, 1444, 1691, 2698, 2888, 3382, 5396, 6319, 6764, 10792, 12638, 13528, 25276, 25631, 32129, 50552, 51262, 64258, 102524, 120061, 128516, 205048, 240122, 257032, 480244, 960488, 2281159, 4562318, 9124636, 18249272]

約数ペア:

[(1, 18249272), (2, 9124636), (4, 4562318), (8, 2281159), (19, 960488), (38, 480244), (71, 257032), (76, 240122), (89, 205048), (142, 128516), (152, 120061), (178, 102524), (284, 64258), (356, 51262), (361, 50552), (568, 32129), (712, 25631), (722, 25276), (1349, 13528), (1444, 12638), (1691, 10792), (2698, 6764), (2888, 6319), (3382, 5396)]