40480414

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{487}}^1$

素因数の和:664

約数の個数: 32

約数和(自身を含む): 68866560

約数和(自身を除く): 28386146

約数列:

[1, 2, 13, 23, 26, 46, 139, 278, 299, 487, 598, 974, 1807, 3197, 3614, 6331, 6394, 11201, 12662, 22402, 41561, 67693, 83122, 135386, 145613, 291226, 880009, 1556939, 1760018, 3113878, 20240207, 40480414]

約数ペア:

[(1, 40480414), (2, 20240207), (13, 3113878), (23, 1760018), (26, 1556939), (46, 880009), (139, 291226), (278, 145613), (299, 135386), (487, 83122), (598, 67693), (974, 41561), (1807, 22402), (3197, 12662), (3614, 11201), (6331, 6394)]