78331960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{7561}}^1$

素因数の和:7616

約数の個数: 64

約数和(自身を含む): 206896320

約数和(自身を除く): 128564360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 2072, 2590, 5180, 7561, 10360, 15122, 30244, 37805, 52927, 60488, 75610, 105854, 151220, 211708, 264635, 279757, 302440, 423416, 529270, 559514, 1058540, 1119028, 1398785, 1958299, 2117080, 2238056, 2797570, 3916598, 5595140, 7833196, 9791495, 11190280, 15666392, 19582990, 39165980, 78331960]

約数ペア:

[(1, 78331960), (2, 39165980), (4, 19582990), (5, 15666392), (7, 11190280), (8, 9791495), (10, 7833196), (14, 5595140), (20, 3916598), (28, 2797570), (35, 2238056), (37, 2117080), (40, 1958299), (56, 1398785), (70, 1119028), (74, 1058540), (140, 559514), (148, 529270), (185, 423416), (259, 302440), (280, 279757), (296, 264635), (370, 211708), (518, 151220), (740, 105854), (1036, 75610), (1295, 60488), (1480, 52927), (2072, 37805), (2590, 30244), (5180, 15122), (7561, 10360)]