18457265

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 24624000

約数和(自身を除く): 6166735

約数列:

[1, 5, 19, 37, 59, 89, 95, 185, 295, 445, 703, 1121, 1691, 2183, 3293, 3515, 5251, 5605, 8455, 10915, 16465, 26255, 41477, 62567, 99769, 194287, 207385, 312835, 498845, 971435, 3691453, 18457265]

約数ペア:

[(1, 18457265), (5, 3691453), (19, 971435), (37, 498845), (59, 312835), (89, 207385), (95, 194287), (185, 99769), (295, 62567), (445, 41477), (703, 26255), (1121, 16465), (1691, 10915), (2183, 8455), (3293, 5605), (3515, 5251)]