997815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:88

約数の個数: 64

約数和(自身を含む): 2128896

約数和(自身を除く): 1131081

約数列:

[1, 3, 5, 7, 13, 15, 17, 21, 35, 39, 43, 51, 65, 85, 91, 105, 119, 129, 195, 215, 221, 255, 273, 301, 357, 455, 559, 595, 645, 663, 731, 903, 1105, 1365, 1505, 1547, 1677, 1785, 2193, 2795, 3315, 3655, 3913, 4515, 4641, 5117, 7735, 8385, 9503, 10965, 11739, 15351, 19565, 23205, 25585, 28509, 47515, 58695, 66521, 76755, 142545, 199563, 332605, 997815]

約数ペア:

[(1, 997815), (3, 332605), (5, 199563), (7, 142545), (13, 76755), (15, 66521), (17, 58695), (21, 47515), (35, 28509), (39, 25585), (43, 23205), (51, 19565), (65, 15351), (85, 11739), (91, 10965), (105, 9503), (119, 8385), (129, 7735), (195, 5117), (215, 4641), (221, 4515), (255, 3913), (273, 3655), (301, 3315), (357, 2795), (455, 2193), (559, 1785), (595, 1677), (645, 1547), (663, 1505), (731, 1365), (903, 1105)]