78084380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4999}}^1$

素因数の和:5090

約数の個数: 48

約数和(自身を含む): 181440000

約数和(自身を除く): 103355620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 4999, 7810, 9998, 15620, 19996, 24995, 49990, 54989, 99980, 109978, 219956, 274945, 354929, 549890, 709858, 1099780, 1419716, 1774645, 3549290, 3904219, 7098580, 7808438, 15616876, 19521095, 39042190, 78084380]

約数ペア:

[(1, 78084380), (2, 39042190), (4, 19521095), (5, 15616876), (10, 7808438), (11, 7098580), (20, 3904219), (22, 3549290), (44, 1774645), (55, 1419716), (71, 1099780), (110, 709858), (142, 549890), (220, 354929), (284, 274945), (355, 219956), (710, 109978), (781, 99980), (1420, 54989), (1562, 49990), (3124, 24995), (3905, 19996), (4999, 15620), (7810, 9998)]