128971525

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 176774400

約数和(自身を除く): 47802875

約数列:

[1, 5, 19, 25, 47, 53, 95, 109, 235, 265, 475, 545, 893, 1007, 1175, 1325, 2071, 2491, 2725, 4465, 5035, 5123, 5777, 10355, 12455, 22325, 25175, 25615, 28885, 47329, 51775, 62275, 97337, 109763, 128075, 144425, 236645, 271519, 486685, 548815, 1183225, 1357595, 2433425, 2744075, 5158861, 6787975, 25794305, 128971525]

約数ペア:

[(1, 128971525), (5, 25794305), (19, 6787975), (25, 5158861), (47, 2744075), (53, 2433425), (95, 1357595), (109, 1183225), (235, 548815), (265, 486685), (475, 271519), (545, 236645), (893, 144425), (1007, 128075), (1175, 109763), (1325, 97337), (2071, 62275), (2491, 51775), (2725, 47329), (4465, 28885), (5035, 25615), (5123, 25175), (5777, 22325), (10355, 12455)]