18268520

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2909}}^1$

素因数の和:3077

約数の個数: 32

約数和(自身を含む): 41380200

約数和(自身を除く): 23111680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 2909, 3140, 5818, 6280, 11636, 14545, 23272, 29090, 58180, 116360, 456713, 913426, 1826852, 2283565, 3653704, 4567130, 9134260, 18268520]

約数ペア:

[(1, 18268520), (2, 9134260), (4, 4567130), (5, 3653704), (8, 2283565), (10, 1826852), (20, 913426), (40, 456713), (157, 116360), (314, 58180), (628, 29090), (785, 23272), (1256, 14545), (1570, 11636), (2909, 6280), (3140, 5818)]