19790325

素因数分解:

$3^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{337}}^1$

素因数の和:388

約数の個数: 60

約数和(自身を含む): 38035140

約数和(自身を除く): 18244815

約数列:

[1, 3, 5, 9, 15, 25, 27, 29, 45, 75, 81, 87, 135, 145, 225, 261, 337, 405, 435, 675, 725, 783, 1011, 1305, 1685, 2025, 2175, 2349, 3033, 3915, 5055, 6525, 8425, 9099, 9773, 11745, 15165, 19575, 25275, 27297, 29319, 45495, 48865, 58725, 75825, 87957, 136485, 146595, 227475, 244325, 263871, 439785, 682425, 732975, 791613, 1319355, 2198925, 3958065, 6596775, 19790325]

約数ペア:

[(1, 19790325), (3, 6596775), (5, 3958065), (9, 2198925), (15, 1319355), (25, 791613), (27, 732975), (29, 682425), (45, 439785), (75, 263871), (81, 244325), (87, 227475), (135, 146595), (145, 136485), (225, 87957), (261, 75825), (337, 58725), (405, 48865), (435, 45495), (675, 29319), (725, 27297), (783, 25275), (1011, 19575), (1305, 15165), (1685, 11745), (2025, 9773), (2175, 9099), (2349, 8425), (3033, 6525), (3915, 5055)]