212291275

素因数分解:

$5^2\times 7^3\times {\mathrm{19}}^1\times {\mathrm{1303}}^1$

素因数の和:1353

約数の個数: 48

約数和(自身を含む): 323392000

約数和(自身を除く): 111100725

約数列:

[1, 5, 7, 19, 25, 35, 49, 95, 133, 175, 245, 343, 475, 665, 931, 1225, 1303, 1715, 3325, 4655, 6515, 6517, 8575, 9121, 23275, 24757, 32575, 32585, 45605, 63847, 123785, 162925, 173299, 228025, 319235, 446929, 618925, 866495, 1213093, 1596175, 2234645, 4332475, 6065465, 8491651, 11173225, 30327325, 42458255, 212291275]

約数ペア:

[(1, 212291275), (5, 42458255), (7, 30327325), (19, 11173225), (25, 8491651), (35, 6065465), (49, 4332475), (95, 2234645), (133, 1596175), (175, 1213093), (245, 866495), (343, 618925), (475, 446929), (665, 319235), (931, 228025), (1225, 173299), (1303, 162925), (1715, 123785), (3325, 63847), (4655, 45605), (6515, 32585), (6517, 32575), (8575, 24757), (9121, 23275)]