218508584

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{659}}^1$

素因数の和:894

約数の個数: 64

約数和(自身を含む): 486604800

約数和(自身を除く): 268096216

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 191, 217, 248, 382, 434, 659, 764, 868, 1318, 1337, 1528, 1736, 2636, 2674, 4613, 5272, 5348, 5921, 9226, 10696, 11842, 18452, 20429, 23684, 36904, 40858, 41447, 47368, 81716, 82894, 125869, 143003, 163432, 165788, 251738, 286006, 331576, 503476, 572012, 881083, 1006952, 1144024, 1762166, 3524332, 3901939, 7048664, 7803878, 15607756, 27313573, 31215512, 54627146, 109254292, 218508584]

約数ペア:

[(1, 218508584), (2, 109254292), (4, 54627146), (7, 31215512), (8, 27313573), (14, 15607756), (28, 7803878), (31, 7048664), (56, 3901939), (62, 3524332), (124, 1762166), (191, 1144024), (217, 1006952), (248, 881083), (382, 572012), (434, 503476), (659, 331576), (764, 286006), (868, 251738), (1318, 165788), (1337, 163432), (1528, 143003), (1736, 125869), (2636, 82894), (2674, 81716), (4613, 47368), (5272, 41447), (5348, 40858), (5921, 36904), (9226, 23684), (10696, 20429), (11842, 18452)]