65587120

素因数分解:

$2^4\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1279}}^1$

素因数の和:1933

約数の個数: 40

約数和(自身を含む): 152847360

約数和(自身を除く): 87260240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641, 1279, 1282, 2558, 2564, 3205, 5116, 5128, 6395, 6410, 10232, 10256, 12790, 12820, 20464, 25580, 25640, 51160, 51280, 102320, 819839, 1639678, 3279356, 4099195, 6558712, 8198390, 13117424, 16396780, 32793560, 65587120]

約数ペア:

[(1, 65587120), (2, 32793560), (4, 16396780), (5, 13117424), (8, 8198390), (10, 6558712), (16, 4099195), (20, 3279356), (40, 1639678), (80, 819839), (641, 102320), (1279, 51280), (1282, 51160), (2558, 25640), (2564, 25580), (3205, 20464), (5116, 12820), (5128, 12790), (6395, 10256), (6410, 10232)]