25015856

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:178

約数の個数: 60

約数和(自身を含む): 52724304

約数和(自身を除く): 27708448

約数列:

[1, 2, 4, 8, 16, 19, 38, 61, 71, 76, 122, 142, 152, 244, 284, 304, 361, 488, 568, 722, 976, 1136, 1159, 1349, 1444, 2318, 2698, 2888, 4331, 4636, 5396, 5776, 8662, 9272, 10792, 17324, 18544, 21584, 22021, 25631, 34648, 44042, 51262, 69296, 82289, 88084, 102524, 164578, 176168, 205048, 329156, 352336, 410096, 658312, 1316624, 1563491, 3126982, 6253964, 12507928, 25015856]

約数ペア:

[(1, 25015856), (2, 12507928), (4, 6253964), (8, 3126982), (16, 1563491), (19, 1316624), (38, 658312), (61, 410096), (71, 352336), (76, 329156), (122, 205048), (142, 176168), (152, 164578), (244, 102524), (284, 88084), (304, 82289), (361, 69296), (488, 51262), (568, 44042), (722, 34648), (976, 25631), (1136, 22021), (1159, 21584), (1349, 18544), (1444, 17324), (2318, 10792), (2698, 9272), (2888, 8662), (4331, 5776), (4636, 5396)]