31900804

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 62339760

約数和(自身を除く): 30438956

約数列:

[1, 2, 4, 13, 26, 52, 61, 89, 113, 122, 178, 226, 244, 356, 452, 793, 1157, 1469, 1586, 2314, 2938, 3172, 4628, 5429, 5876, 6893, 10057, 10858, 13786, 20114, 21716, 27572, 40228, 70577, 89609, 130741, 141154, 179218, 261482, 282308, 358436, 522964, 613477, 1226954, 2453908, 7975201, 15950402, 31900804]

約数ペア:

[(1, 31900804), (2, 15950402), (4, 7975201), (13, 2453908), (26, 1226954), (52, 613477), (61, 522964), (89, 358436), (113, 282308), (122, 261482), (178, 179218), (226, 141154), (244, 130741), (356, 89609), (452, 70577), (793, 40228), (1157, 27572), (1469, 21716), (1586, 20114), (2314, 13786), (2938, 10858), (3172, 10057), (4628, 6893), (5429, 5876)]