31217095

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:224

約数の個数: 64

約数和(自身を含む): 50964480

約数和(自身を除く): 19747385

約数列:

[1, 5, 7, 13, 19, 23, 35, 65, 91, 95, 115, 133, 157, 161, 247, 299, 437, 455, 665, 785, 805, 1099, 1235, 1495, 1729, 2041, 2093, 2185, 2983, 3059, 3611, 5495, 5681, 8645, 10205, 10465, 14287, 14915, 15295, 18055, 20881, 25277, 28405, 38779, 39767, 46943, 68609, 71435, 104405, 126385, 193895, 198835, 234715, 271453, 328601, 343045, 480263, 891917, 1357265, 1643005, 2401315, 4459585, 6243419, 31217095]

約数ペア:

[(1, 31217095), (5, 6243419), (7, 4459585), (13, 2401315), (19, 1643005), (23, 1357265), (35, 891917), (65, 480263), (91, 343045), (95, 328601), (115, 271453), (133, 234715), (157, 198835), (161, 193895), (247, 126385), (299, 104405), (437, 71435), (455, 68609), (665, 46943), (785, 39767), (805, 38779), (1099, 28405), (1235, 25277), (1495, 20881), (1729, 18055), (2041, 15295), (2093, 14915), (2185, 14287), (2983, 10465), (3059, 10205), (3611, 8645), (5495, 5681)]