81941160

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97549}}^1$

素因数の和:97570

約数の個数: 64

約数和(自身を含む): 280944000

約数和(自身を除く): 199002840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 97549, 195098, 292647, 390196, 487745, 585294, 682843, 780392, 975490, 1170588, 1365686, 1463235, 1950980, 2048529, 2341176, 2731372, 2926470, 3414215, 3901960, 4097058, 5462744, 5852940, 6828430, 8194116, 10242645, 11705880, 13656860, 16388232, 20485290, 27313720, 40970580, 81941160]

約数ペア:

[(1, 81941160), (2, 40970580), (3, 27313720), (4, 20485290), (5, 16388232), (6, 13656860), (7, 11705880), (8, 10242645), (10, 8194116), (12, 6828430), (14, 5852940), (15, 5462744), (20, 4097058), (21, 3901960), (24, 3414215), (28, 2926470), (30, 2731372), (35, 2341176), (40, 2048529), (42, 1950980), (56, 1463235), (60, 1365686), (70, 1170588), (84, 975490), (105, 780392), (120, 682843), (140, 585294), (168, 487745), (210, 390196), (280, 292647), (420, 195098), (840, 97549)]