25527280

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5231}}^1$

素因数の和:5305

約数の個数: 40

約数和(自身を含む): 60335424

約数和(自身を除く): 34808144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 5231, 10462, 20924, 26155, 41848, 52310, 83696, 104620, 209240, 319091, 418480, 638182, 1276364, 1595455, 2552728, 3190910, 5105456, 6381820, 12763640, 25527280]

約数ペア:

[(1, 25527280), (2, 12763640), (4, 6381820), (5, 5105456), (8, 3190910), (10, 2552728), (16, 1595455), (20, 1276364), (40, 638182), (61, 418480), (80, 319091), (122, 209240), (244, 104620), (305, 83696), (488, 52310), (610, 41848), (976, 26155), (1220, 20924), (2440, 10462), (4880, 5231)]