81156450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{31}}^2\times {\mathrm{563}}^1$

素因数の和:640

約数の個数: 72

約数和(自身を含む): 208339344

約数和(自身を除く): 127182894

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 31, 50, 62, 75, 93, 150, 155, 186, 310, 465, 563, 775, 930, 961, 1126, 1550, 1689, 1922, 2325, 2815, 2883, 3378, 4650, 4805, 5630, 5766, 8445, 9610, 14075, 14415, 16890, 17453, 24025, 28150, 28830, 34906, 42225, 48050, 52359, 72075, 84450, 87265, 104718, 144150, 174530, 261795, 436325, 523590, 541043, 872650, 1082086, 1308975, 1623129, 2617950, 2705215, 3246258, 5410430, 8115645, 13526075, 16231290, 27052150, 40578225, 81156450]

約数ペア:

[(1, 81156450), (2, 40578225), (3, 27052150), (5, 16231290), (6, 13526075), (10, 8115645), (15, 5410430), (25, 3246258), (30, 2705215), (31, 2617950), (50, 1623129), (62, 1308975), (75, 1082086), (93, 872650), (150, 541043), (155, 523590), (186, 436325), (310, 261795), (465, 174530), (563, 144150), (775, 104718), (930, 87265), (961, 84450), (1126, 72075), (1550, 52359), (1689, 48050), (1922, 42225), (2325, 34906), (2815, 28830), (2883, 28150), (3378, 24025), (4650, 17453), (4805, 16890), (5630, 14415), (5766, 14075), (8445, 9610)]