199759725

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1877}}^1$

素因数の和:1947

約数の個数: 72

約数和(自身を含む): 399608352

約数和(自身を除く): 199848627

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 43, 45, 55, 75, 99, 129, 165, 215, 225, 275, 387, 473, 495, 645, 825, 1075, 1419, 1877, 1935, 2365, 2475, 3225, 4257, 5631, 7095, 9385, 9675, 11825, 16893, 20647, 21285, 28155, 35475, 46925, 61941, 80711, 84465, 103235, 106425, 140775, 185823, 242133, 309705, 403555, 422325, 516175, 726399, 887821, 929115, 1210665, 1548525, 2017775, 2663463, 3631995, 4439105, 4645575, 6053325, 7990389, 13317315, 18159975, 22195525, 39951945, 66586575, 199759725]

約数ペア:

[(1, 199759725), (3, 66586575), (5, 39951945), (9, 22195525), (11, 18159975), (15, 13317315), (25, 7990389), (33, 6053325), (43, 4645575), (45, 4439105), (55, 3631995), (75, 2663463), (99, 2017775), (129, 1548525), (165, 1210665), (215, 929115), (225, 887821), (275, 726399), (387, 516175), (473, 422325), (495, 403555), (645, 309705), (825, 242133), (1075, 185823), (1419, 140775), (1877, 106425), (1935, 103235), (2365, 84465), (2475, 80711), (3225, 61941), (4257, 46925), (5631, 35475), (7095, 28155), (9385, 21285), (9675, 20647), (11825, 16893)]