249501265

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:226

約数の個数: 64

約数和(自身を含む): 359251200

約数和(自身を除く): 109749935

約数列:

[1, 5, 13, 17, 43, 59, 65, 85, 89, 215, 221, 295, 445, 559, 731, 767, 1003, 1105, 1157, 1513, 2537, 2795, 3655, 3827, 3835, 5015, 5251, 5785, 7565, 9503, 12685, 13039, 19135, 19669, 26255, 32981, 43129, 47515, 49751, 65059, 65195, 68263, 89267, 98345, 164905, 215645, 225793, 248755, 325295, 341315, 446335, 560677, 845767, 1128965, 1160471, 2803385, 2935309, 3838481, 4228835, 5802355, 14676545, 19192405, 49900253, 249501265]

約数ペア:

[(1, 249501265), (5, 49900253), (13, 19192405), (17, 14676545), (43, 5802355), (59, 4228835), (65, 3838481), (85, 2935309), (89, 2803385), (215, 1160471), (221, 1128965), (295, 845767), (445, 560677), (559, 446335), (731, 341315), (767, 325295), (1003, 248755), (1105, 225793), (1157, 215645), (1513, 164905), (2537, 98345), (2795, 89267), (3655, 68263), (3827, 65195), (3835, 65059), (5015, 49751), (5251, 47515), (5785, 43129), (7565, 32981), (9503, 26255), (12685, 19669), (13039, 19135)]