391108240

素因数分解:

$2^4\times 5^1\times {\mathrm{839}}^1\times {\mathrm{5827}}^1$

素因数の和:6679

約数の個数: 40

約数和(自身を含む): 910566720

約数和(自身を除く): 519458480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 839, 1678, 3356, 4195, 5827, 6712, 8390, 11654, 13424, 16780, 23308, 29135, 33560, 46616, 58270, 67120, 93232, 116540, 233080, 466160, 4888853, 9777706, 19555412, 24444265, 39110824, 48888530, 78221648, 97777060, 195554120, 391108240]

約数ペア:

[(1, 391108240), (2, 195554120), (4, 97777060), (5, 78221648), (8, 48888530), (10, 39110824), (16, 24444265), (20, 19555412), (40, 9777706), (80, 4888853), (839, 466160), (1678, 233080), (3356, 116540), (4195, 93232), (5827, 67120), (6712, 58270), (8390, 46616), (11654, 33560), (13424, 29135), (16780, 23308)]