68812900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1231}}^1$

素因数の和:1301

約数の個数: 72

約数和(自身を含む): 164683904

約数和(自身を除く): 95871004

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 43, 50, 52, 65, 86, 100, 130, 172, 215, 260, 325, 430, 559, 650, 860, 1075, 1118, 1231, 1300, 2150, 2236, 2462, 2795, 4300, 4924, 5590, 6155, 11180, 12310, 13975, 16003, 24620, 27950, 30775, 32006, 52933, 55900, 61550, 64012, 80015, 105866, 123100, 160030, 211732, 264665, 320060, 400075, 529330, 688129, 800150, 1058660, 1323325, 1376258, 1600300, 2646650, 2752516, 3440645, 5293300, 6881290, 13762580, 17203225, 34406450, 68812900]

約数ペア:

[(1, 68812900), (2, 34406450), (4, 17203225), (5, 13762580), (10, 6881290), (13, 5293300), (20, 3440645), (25, 2752516), (26, 2646650), (43, 1600300), (50, 1376258), (52, 1323325), (65, 1058660), (86, 800150), (100, 688129), (130, 529330), (172, 400075), (215, 320060), (260, 264665), (325, 211732), (430, 160030), (559, 123100), (650, 105866), (860, 80015), (1075, 64012), (1118, 61550), (1231, 55900), (1300, 52933), (2150, 32006), (2236, 30775), (2462, 27950), (2795, 24620), (4300, 16003), (4924, 13975), (5590, 12310), (6155, 11180)]