39993040

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:280

約数の個数: 80

約数和(自身を含む): 97025040

約数和(自身を除く): 57032000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 89, 137, 164, 178, 205, 274, 328, 356, 410, 445, 548, 656, 685, 712, 820, 890, 1096, 1370, 1424, 1640, 1780, 2192, 2740, 3280, 3560, 3649, 5480, 5617, 7120, 7298, 10960, 11234, 12193, 14596, 18245, 22468, 24386, 28085, 29192, 36490, 44936, 48772, 56170, 58384, 60965, 72980, 89872, 97544, 112340, 121930, 145960, 195088, 224680, 243860, 291920, 449360, 487720, 499913, 975440, 999826, 1999652, 2499565, 3999304, 4999130, 7998608, 9998260, 19996520, 39993040]

約数ペア:

[(1, 39993040), (2, 19996520), (4, 9998260), (5, 7998608), (8, 4999130), (10, 3999304), (16, 2499565), (20, 1999652), (40, 999826), (41, 975440), (80, 499913), (82, 487720), (89, 449360), (137, 291920), (164, 243860), (178, 224680), (205, 195088), (274, 145960), (328, 121930), (356, 112340), (410, 97544), (445, 89872), (548, 72980), (656, 60965), (685, 58384), (712, 56170), (820, 48772), (890, 44936), (1096, 36490), (1370, 29192), (1424, 28085), (1640, 24386), (1780, 22468), (2192, 18245), (2740, 14596), (3280, 12193), (3560, 11234), (3649, 10960), (5480, 7298), (5617, 7120)]