20205588

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:457

約数の個数: 96

約数和(自身を含む): 56730240

約数和(自身を除く): 36524652

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 19, 26, 34, 38, 39, 51, 52, 57, 68, 76, 78, 102, 114, 156, 204, 221, 228, 247, 323, 401, 442, 494, 646, 663, 741, 802, 884, 969, 988, 1203, 1292, 1326, 1482, 1604, 1938, 2406, 2652, 2964, 3876, 4199, 4812, 5213, 6817, 7619, 8398, 10426, 12597, 13634, 15238, 15639, 16796, 20451, 20852, 22857, 25194, 27268, 30476, 31278, 40902, 45714, 50388, 62556, 81804, 88621, 91428, 99047, 129523, 177242, 198094, 259046, 265863, 297141, 354484, 388569, 396188, 518092, 531726, 594282, 777138, 1063452, 1188564, 1554276, 1683799, 3367598, 5051397, 6735196, 10102794, 20205588]

約数ペア:

[(1, 20205588), (2, 10102794), (3, 6735196), (4, 5051397), (6, 3367598), (12, 1683799), (13, 1554276), (17, 1188564), (19, 1063452), (26, 777138), (34, 594282), (38, 531726), (39, 518092), (51, 396188), (52, 388569), (57, 354484), (68, 297141), (76, 265863), (78, 259046), (102, 198094), (114, 177242), (156, 129523), (204, 99047), (221, 91428), (228, 88621), (247, 81804), (323, 62556), (401, 50388), (442, 45714), (494, 40902), (646, 31278), (663, 30476), (741, 27268), (802, 25194), (884, 22857), (969, 20852), (988, 20451), (1203, 16796), (1292, 15639), (1326, 15238), (1482, 13634), (1604, 12597), (1938, 10426), (2406, 8398), (2652, 7619), (2964, 6817), (3876, 5213), (4199, 4812)]