12140975

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1$

素因数の和:105

約数の個数: 72

約数和(自身を含む): 20610288

約数和(自身を除く): 8469313

約数列:

[1, 5, 7, 11, 17, 25, 35, 49, 53, 55, 77, 85, 119, 175, 187, 245, 265, 275, 371, 385, 425, 539, 583, 595, 833, 901, 935, 1225, 1309, 1325, 1855, 1925, 2597, 2695, 2915, 2975, 4081, 4165, 4505, 4675, 6307, 6545, 9163, 9275, 9911, 12985, 13475, 14575, 20405, 20825, 22525, 28567, 31535, 32725, 44149, 45815, 49555, 64925, 69377, 102025, 142835, 157675, 220745, 229075, 247775, 346885, 485639, 714175, 1103725, 1734425, 2428195, 12140975]

約数ペア:

[(1, 12140975), (5, 2428195), (7, 1734425), (11, 1103725), (17, 714175), (25, 485639), (35, 346885), (49, 247775), (53, 229075), (55, 220745), (77, 157675), (85, 142835), (119, 102025), (175, 69377), (187, 64925), (245, 49555), (265, 45815), (275, 44149), (371, 32725), (385, 31535), (425, 28567), (539, 22525), (583, 20825), (595, 20405), (833, 14575), (901, 13475), (935, 12985), (1225, 9911), (1309, 9275), (1325, 9163), (1855, 6545), (1925, 6307), (2597, 4675), (2695, 4505), (2915, 4165), (2975, 4081)]