19883220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6763}}^1$

素因数の和:6789

約数の個数: 72

約数和(自身を含む): 64772064

約数和(自身を除く): 44888844

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 6763, 13526, 20289, 27052, 33815, 40578, 47341, 67630, 81156, 94682, 101445, 135260, 142023, 189364, 202890, 236705, 284046, 331387, 405780, 473410, 568092, 662774, 710115, 946820, 994161, 1325548, 1420230, 1656935, 1988322, 2840460, 3313870, 3976644, 4970805, 6627740, 9941610, 19883220]

約数ペア:

[(1, 19883220), (2, 9941610), (3, 6627740), (4, 4970805), (5, 3976644), (6, 3313870), (7, 2840460), (10, 1988322), (12, 1656935), (14, 1420230), (15, 1325548), (20, 994161), (21, 946820), (28, 710115), (30, 662774), (35, 568092), (42, 473410), (49, 405780), (60, 331387), (70, 284046), (84, 236705), (98, 202890), (105, 189364), (140, 142023), (147, 135260), (196, 101445), (210, 94682), (245, 81156), (294, 67630), (420, 47341), (490, 40578), (588, 33815), (735, 27052), (980, 20289), (1470, 13526), (2940, 6763)]