199316780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{20719}}^1$

素因数の和:20778

約数の個数: 48

約数和(自身を含む): 462967680

約数和(自身を除く): 263650900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 2405, 4810, 9620, 20719, 41438, 82876, 103595, 207190, 269347, 414380, 538694, 766603, 1077388, 1346735, 1533206, 2693470, 3066412, 3833015, 5386940, 7666030, 9965839, 15332060, 19931678, 39863356, 49829195, 99658390, 199316780]

約数ペア:

[(1, 199316780), (2, 99658390), (4, 49829195), (5, 39863356), (10, 19931678), (13, 15332060), (20, 9965839), (26, 7666030), (37, 5386940), (52, 3833015), (65, 3066412), (74, 2693470), (130, 1533206), (148, 1346735), (185, 1077388), (260, 766603), (370, 538694), (481, 414380), (740, 269347), (962, 207190), (1924, 103595), (2405, 82876), (4810, 41438), (9620, 20719)]