18908320

素因数分解:

$2^5\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2003}}^1$

素因数の和:2077

約数の個数: 48

約数和(自身を含む): 45450720

約数和(自身を除く): 26542400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 59, 80, 118, 160, 236, 295, 472, 590, 944, 1180, 1888, 2003, 2360, 4006, 4720, 8012, 9440, 10015, 16024, 20030, 32048, 40060, 64096, 80120, 118177, 160240, 236354, 320480, 472708, 590885, 945416, 1181770, 1890832, 2363540, 3781664, 4727080, 9454160, 18908320]

約数ペア:

[(1, 18908320), (2, 9454160), (4, 4727080), (5, 3781664), (8, 2363540), (10, 1890832), (16, 1181770), (20, 945416), (32, 590885), (40, 472708), (59, 320480), (80, 236354), (118, 160240), (160, 118177), (236, 80120), (295, 64096), (472, 40060), (590, 32048), (944, 20030), (1180, 16024), (1888, 10015), (2003, 9440), (2360, 8012), (4006, 4720)]