81738005080

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1\times {\mathrm{217643}}^1$

素因数の和:217924

約数の個数: 64

約数和(自身を含む): 189219693600

約数和(自身を除く): 107481688520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 229, 328, 410, 458, 820, 916, 1145, 1640, 1832, 2290, 4580, 9160, 9389, 18778, 37556, 46945, 75112, 93890, 187780, 217643, 375560, 435286, 870572, 1088215, 1741144, 2176430, 4352860, 8705720, 8923363, 17846726, 35693452, 44616815, 49840247, 71386904, 89233630, 99680494, 178467260, 199360988, 249201235, 356934520, 398721976, 498402470, 996804940, 1993609880, 2043450127, 4086900254, 8173800508, 10217250635, 16347601016, 20434501270, 40869002540, 81738005080]

約数ペア:

[(1, 81738005080), (2, 40869002540), (4, 20434501270), (5, 16347601016), (8, 10217250635), (10, 8173800508), (20, 4086900254), (40, 2043450127), (41, 1993609880), (82, 996804940), (164, 498402470), (205, 398721976), (229, 356934520), (328, 249201235), (410, 199360988), (458, 178467260), (820, 99680494), (916, 89233630), (1145, 71386904), (1640, 49840247), (1832, 44616815), (2290, 35693452), (4580, 17846726), (9160, 8923363), (9389, 8705720), (18778, 4352860), (37556, 2176430), (46945, 1741144), (75112, 1088215), (93890, 870572), (187780, 435286), (217643, 375560)]