78778860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{5231}}^1$

素因数の和:5494

約数の個数: 48

約数和(自身を含む): 221501952

約数和(自身を除く): 142723092

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 251, 502, 753, 1004, 1255, 1506, 2510, 3012, 3765, 5020, 5231, 7530, 10462, 15060, 15693, 20924, 26155, 31386, 52310, 62772, 78465, 104620, 156930, 313860, 1312981, 2625962, 3938943, 5251924, 6564905, 7877886, 13129810, 15755772, 19694715, 26259620, 39389430, 78778860]

約数ペア:

[(1, 78778860), (2, 39389430), (3, 26259620), (4, 19694715), (5, 15755772), (6, 13129810), (10, 7877886), (12, 6564905), (15, 5251924), (20, 3938943), (30, 2625962), (60, 1312981), (251, 313860), (502, 156930), (753, 104620), (1004, 78465), (1255, 62772), (1506, 52310), (2510, 31386), (3012, 26155), (3765, 20924), (5020, 15693), (5231, 15060), (7530, 10462)]