77885980

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{20389}}^1$

素因数の和:20589

約数の個数: 24

約数和(自身を含む): 164424960

約数和(自身を除く): 86538980

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 20389, 40778, 81556, 101945, 203890, 407780, 3894299, 7788598, 15577196, 19471495, 38942990, 77885980]

約数ペア:

[(1, 77885980), (2, 38942990), (4, 19471495), (5, 15577196), (10, 7788598), (20, 3894299), (191, 407780), (382, 203890), (764, 101945), (955, 81556), (1910, 40778), (3820, 20389)]