20179958968

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{349}}^1\times {\mathrm{6247}}^1$

素因数の和:6704

約数の個数: 64

約数和(自身を含む): 41330520000

約数和(自身を除く): 21150561032

約数列:

[1, 2, 4, 8, 13, 26, 52, 89, 104, 178, 349, 356, 698, 712, 1157, 1396, 2314, 2792, 4537, 4628, 6247, 9074, 9256, 12494, 18148, 24988, 31061, 36296, 49976, 62122, 81211, 124244, 162422, 248488, 324844, 403793, 555983, 649688, 807586, 1111966, 1615172, 2180203, 2223932, 3230344, 4360406, 4447864, 7227779, 8720812, 14455558, 17441624, 28342639, 28911116, 56685278, 57822232, 113370556, 194038067, 226741112, 388076134, 776152268, 1552304536, 2522494871, 5044989742, 10089979484, 20179958968]

約数ペア:

[(1, 20179958968), (2, 10089979484), (4, 5044989742), (8, 2522494871), (13, 1552304536), (26, 776152268), (52, 388076134), (89, 226741112), (104, 194038067), (178, 113370556), (349, 57822232), (356, 56685278), (698, 28911116), (712, 28342639), (1157, 17441624), (1396, 14455558), (2314, 8720812), (2792, 7227779), (4537, 4447864), (4628, 4360406), (6247, 3230344), (9074, 2223932), (9256, 2180203), (12494, 1615172), (18148, 1111966), (24988, 807586), (31061, 649688), (36296, 555983), (49976, 403793), (62122, 324844), (81211, 248488), (124244, 162422)]