208319325

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^2$

素因数の和:203

約数の個数: 72

約数和(自身を含む): 380407200

約数和(自身を除く): 172087875

約数列:

[1, 3, 5, 15, 19, 25, 29, 57, 71, 75, 87, 95, 145, 213, 285, 355, 435, 475, 551, 725, 1065, 1349, 1425, 1653, 1775, 2059, 2175, 2755, 4047, 5041, 5325, 6177, 6745, 8265, 10295, 13775, 15123, 20235, 25205, 30885, 33725, 39121, 41325, 51475, 75615, 95779, 101175, 117363, 126025, 146189, 154425, 195605, 287337, 378075, 438567, 478895, 586815, 730945, 978025, 1436685, 2192835, 2394475, 2777591, 2934075, 3654725, 7183425, 8332773, 10964175, 13887955, 41663865, 69439775, 208319325]

約数ペア:

[(1, 208319325), (3, 69439775), (5, 41663865), (15, 13887955), (19, 10964175), (25, 8332773), (29, 7183425), (57, 3654725), (71, 2934075), (75, 2777591), (87, 2394475), (95, 2192835), (145, 1436685), (213, 978025), (285, 730945), (355, 586815), (435, 478895), (475, 438567), (551, 378075), (725, 287337), (1065, 195605), (1349, 154425), (1425, 146189), (1653, 126025), (1775, 117363), (2059, 101175), (2175, 95779), (2755, 75615), (4047, 51475), (5041, 41325), (5325, 39121), (6177, 33725), (6745, 30885), (8265, 25205), (10295, 20235), (13775, 15123)]