19078675

素因数分解:

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

素因数の和:109

約数の個数: 72

約数和(自身を含む): 32060448

約数和(自身を除く): 12981773

約数列:

[1, 5, 7, 11, 17, 25, 35, 53, 55, 77, 85, 119, 121, 175, 187, 265, 275, 371, 385, 425, 583, 595, 605, 847, 901, 935, 1309, 1325, 1855, 1925, 2057, 2915, 2975, 3025, 4081, 4235, 4505, 4675, 6307, 6413, 6545, 9275, 9911, 10285, 14399, 14575, 20405, 21175, 22525, 31535, 32065, 32725, 44891, 49555, 51425, 69377, 71995, 102025, 109021, 157675, 160325, 224455, 247775, 346885, 359975, 545105, 763147, 1122275, 1734425, 2725525, 3815735, 19078675]

約数ペア:

[(1, 19078675), (5, 3815735), (7, 2725525), (11, 1734425), (17, 1122275), (25, 763147), (35, 545105), (53, 359975), (55, 346885), (77, 247775), (85, 224455), (119, 160325), (121, 157675), (175, 109021), (187, 102025), (265, 71995), (275, 69377), (371, 51425), (385, 49555), (425, 44891), (583, 32725), (595, 32065), (605, 31535), (847, 22525), (901, 21175), (935, 20405), (1309, 14575), (1325, 14399), (1855, 10285), (1925, 9911), (2057, 9275), (2915, 6545), (2975, 6413), (3025, 6307), (4081, 4675), (4235, 4505)]