18627125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:99

約数の個数: 64

約数和(自身を含む): 28753920

約数和(自身を除く): 10126795

約数列:

[1, 5, 11, 19, 23, 25, 31, 55, 95, 115, 125, 155, 209, 253, 275, 341, 437, 475, 575, 589, 713, 775, 1045, 1265, 1375, 1705, 2185, 2375, 2875, 2945, 3565, 3875, 4807, 5225, 6325, 6479, 7843, 8525, 10925, 13547, 14725, 17825, 24035, 26125, 31625, 32395, 39215, 42625, 54625, 67735, 73625, 89125, 120175, 149017, 161975, 196075, 338675, 600875, 745085, 809875, 980375, 1693375, 3725425, 18627125]

約数ペア:

[(1, 18627125), (5, 3725425), (11, 1693375), (19, 980375), (23, 809875), (25, 745085), (31, 600875), (55, 338675), (95, 196075), (115, 161975), (125, 149017), (155, 120175), (209, 89125), (253, 73625), (275, 67735), (341, 54625), (437, 42625), (475, 39215), (575, 32395), (589, 31625), (713, 26125), (775, 24035), (1045, 17825), (1265, 14725), (1375, 13547), (1705, 10925), (2185, 8525), (2375, 7843), (2875, 6479), (2945, 6325), (3565, 5225), (3875, 4807)]