81874170

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{129959}}^1$

素因数の和:129979

約数の個数: 48

約数和(自身を含む): 243285120

約数和(自身を除く): 161410950

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 129959, 259918, 389877, 649795, 779754, 909713, 1169631, 1299590, 1819426, 1949385, 2339262, 2729139, 3898770, 4548565, 5458278, 5848155, 8187417, 9097130, 11696310, 13645695, 16374834, 27291390, 40937085, 81874170]

約数ペア:

[(1, 81874170), (2, 40937085), (3, 27291390), (5, 16374834), (6, 13645695), (7, 11696310), (9, 9097130), (10, 8187417), (14, 5848155), (15, 5458278), (18, 4548565), (21, 3898770), (30, 2729139), (35, 2339262), (42, 1949385), (45, 1819426), (63, 1299590), (70, 1169631), (90, 909713), (105, 779754), (126, 649795), (210, 389877), (315, 259918), (630, 129959)]