287808004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{683}}^1$

素因数の和:916

約数の個数: 48

約数和(自身を含む): 562838976

約数和(自身を除く): 275030972

約数列:

[1, 2, 4, 11, 22, 44, 61, 122, 157, 244, 314, 628, 671, 683, 1342, 1366, 1727, 2684, 2732, 3454, 6908, 7513, 9577, 15026, 19154, 30052, 38308, 41663, 83326, 105347, 107231, 166652, 210694, 214462, 421388, 428924, 458293, 916586, 1179541, 1833172, 2359082, 4718164, 6541091, 13082182, 26164364, 71952001, 143904002, 287808004]

約数ペア:

[(1, 287808004), (2, 143904002), (4, 71952001), (11, 26164364), (22, 13082182), (44, 6541091), (61, 4718164), (122, 2359082), (157, 1833172), (244, 1179541), (314, 916586), (628, 458293), (671, 428924), (683, 421388), (1342, 214462), (1366, 210694), (1727, 166652), (2684, 107231), (2732, 105347), (3454, 83326), (6908, 41663), (7513, 38308), (9577, 30052), (15026, 19154)]