17919185

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 24192000

約数和(自身を除く): 6272815

約数列:

[1, 5, 19, 23, 59, 95, 115, 139, 295, 437, 695, 1121, 1357, 2185, 2641, 3197, 5605, 6785, 8201, 13205, 15985, 25783, 41005, 60743, 128915, 155819, 188623, 303715, 779095, 943115, 3583837, 17919185]

約数ペア:

[(1, 17919185), (5, 3583837), (19, 943115), (23, 779095), (59, 303715), (95, 188623), (115, 155819), (139, 128915), (295, 60743), (437, 41005), (695, 25783), (1121, 15985), (1357, 13205), (2185, 8201), (2641, 6785), (3197, 5605)]