640005456

素因数分解:

$2^4\times 3^1\times {\mathrm{167}}^1\times {\mathrm{79841}}^1$

素因数の和:80019

約数の個数: 40

約数和(自身を含む): 1663268544

約数和(自身を除く): 1023263088

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 167, 334, 501, 668, 1002, 1336, 2004, 2672, 4008, 8016, 79841, 159682, 239523, 319364, 479046, 638728, 958092, 1277456, 1916184, 3832368, 13333447, 26666894, 40000341, 53333788, 80000682, 106667576, 160001364, 213335152, 320002728, 640005456]

約数ペア:

[(1, 640005456), (2, 320002728), (3, 213335152), (4, 160001364), (6, 106667576), (8, 80000682), (12, 53333788), (16, 40000341), (24, 26666894), (48, 13333447), (167, 3832368), (334, 1916184), (501, 1277456), (668, 958092), (1002, 638728), (1336, 479046), (2004, 319364), (2672, 239523), (4008, 159682), (8016, 79841)]