20484584

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 41765220

約数和(自身を除く): 21280636

約数列:

[1, 2, 4, 8, 19, 38, 41, 76, 82, 152, 164, 173, 328, 346, 361, 692, 722, 779, 1384, 1444, 1558, 2888, 3116, 3287, 6232, 6574, 7093, 13148, 14186, 14801, 26296, 28372, 29602, 56744, 59204, 62453, 118408, 124906, 134767, 249812, 269534, 499624, 539068, 1078136, 2560573, 5121146, 10242292, 20484584]

約数ペア:

[(1, 20484584), (2, 10242292), (4, 5121146), (8, 2560573), (19, 1078136), (38, 539068), (41, 499624), (76, 269534), (82, 249812), (152, 134767), (164, 124906), (173, 118408), (328, 62453), (346, 59204), (361, 56744), (692, 29602), (722, 28372), (779, 26296), (1384, 14801), (1444, 14186), (1558, 13148), (2888, 7093), (3116, 6574), (3287, 6232)]