81386340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1811}}^1$

素因数の和:1937

約数の個数: 96

約数和(自身を含む): 263015424

約数和(自身を除く): 181629084

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 107, 140, 210, 214, 321, 420, 428, 535, 642, 749, 1070, 1284, 1498, 1605, 1811, 2140, 2247, 2996, 3210, 3622, 3745, 4494, 5433, 6420, 7244, 7490, 8988, 9055, 10866, 11235, 12677, 14980, 18110, 21732, 22470, 25354, 27165, 36220, 38031, 44940, 50708, 54330, 63385, 76062, 108660, 126770, 152124, 190155, 193777, 253540, 380310, 387554, 581331, 760620, 775108, 968885, 1162662, 1356439, 1937770, 2325324, 2712878, 2906655, 3875540, 4069317, 5425756, 5813310, 6782195, 8138634, 11626620, 13564390, 16277268, 20346585, 27128780, 40693170, 81386340]

約数ペア:

[(1, 81386340), (2, 40693170), (3, 27128780), (4, 20346585), (5, 16277268), (6, 13564390), (7, 11626620), (10, 8138634), (12, 6782195), (14, 5813310), (15, 5425756), (20, 4069317), (21, 3875540), (28, 2906655), (30, 2712878), (35, 2325324), (42, 1937770), (60, 1356439), (70, 1162662), (84, 968885), (105, 775108), (107, 760620), (140, 581331), (210, 387554), (214, 380310), (321, 253540), (420, 193777), (428, 190155), (535, 152124), (642, 126770), (749, 108660), (1070, 76062), (1284, 63385), (1498, 54330), (1605, 50708), (1811, 44940), (2140, 38031), (2247, 36220), (2996, 27165), (3210, 25354), (3622, 22470), (3745, 21732), (4494, 18110), (5433, 14980), (6420, 12677), (7244, 11235), (7490, 10866), (8988, 9055)]