291206120

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1\times {\mathrm{563}}^1$

素因数の和:834

約数の個数: 64

約数和(自身を含む): 669625920

約数和(自身を除く): 378419800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 193, 268, 335, 386, 536, 563, 670, 772, 965, 1126, 1340, 1544, 1930, 2252, 2680, 2815, 3860, 4504, 5630, 7720, 11260, 12931, 22520, 25862, 37721, 51724, 64655, 75442, 103448, 108659, 129310, 150884, 188605, 217318, 258620, 301768, 377210, 434636, 517240, 543295, 754420, 869272, 1086590, 1508840, 2173180, 4346360, 7280153, 14560306, 29120612, 36400765, 58241224, 72801530, 145603060, 291206120]

約数ペア:

[(1, 291206120), (2, 145603060), (4, 72801530), (5, 58241224), (8, 36400765), (10, 29120612), (20, 14560306), (40, 7280153), (67, 4346360), (134, 2173180), (193, 1508840), (268, 1086590), (335, 869272), (386, 754420), (536, 543295), (563, 517240), (670, 434636), (772, 377210), (965, 301768), (1126, 258620), (1340, 217318), (1544, 188605), (1930, 150884), (2252, 129310), (2680, 108659), (2815, 103448), (3860, 75442), (4504, 64655), (5630, 51724), (7720, 37721), (11260, 25862), (12931, 22520)]