204780385

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 295488000

約数和(自身を除く): 90707615

約数列:

[1, 5, 17, 19, 23, 37, 85, 95, 115, 149, 185, 323, 391, 437, 629, 703, 745, 851, 1615, 1955, 2185, 2533, 2831, 3145, 3427, 3515, 4255, 5513, 7429, 11951, 12665, 14155, 14467, 16169, 17135, 27565, 37145, 48127, 58259, 59755, 65113, 72335, 80845, 93721, 104747, 126799, 240635, 274873, 291295, 325565, 468605, 523735, 633995, 1106921, 1374365, 1780699, 2155583, 2409181, 5534605, 8903495, 10777915, 12045905, 40956077, 204780385]

約数ペア:

[(1, 204780385), (5, 40956077), (17, 12045905), (19, 10777915), (23, 8903495), (37, 5534605), (85, 2409181), (95, 2155583), (115, 1780699), (149, 1374365), (185, 1106921), (323, 633995), (391, 523735), (437, 468605), (629, 325565), (703, 291295), (745, 274873), (851, 240635), (1615, 126799), (1955, 104747), (2185, 93721), (2533, 80845), (2831, 72335), (3145, 65113), (3427, 59755), (3515, 58259), (4255, 48127), (5513, 37145), (7429, 27565), (11951, 17135), (12665, 16169), (14155, 14467)]