78207780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6421}}^1$

素因数の和:6469

約数の個数: 96

約数和(自身を含む): 258935040

約数和(自身を除く): 180727260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 58, 60, 70, 84, 87, 105, 116, 140, 145, 174, 203, 210, 290, 348, 406, 420, 435, 580, 609, 812, 870, 1015, 1218, 1740, 2030, 2436, 3045, 4060, 6090, 6421, 12180, 12842, 19263, 25684, 32105, 38526, 44947, 64210, 77052, 89894, 96315, 128420, 134841, 179788, 186209, 192630, 224735, 269682, 372418, 385260, 449470, 539364, 558627, 674205, 744836, 898940, 931045, 1117254, 1303463, 1348410, 1862090, 2234508, 2606926, 2696820, 2793135, 3724180, 3910389, 5213852, 5586270, 6517315, 7820778, 11172540, 13034630, 15641556, 19551945, 26069260, 39103890, 78207780]

約数ペア:

[(1, 78207780), (2, 39103890), (3, 26069260), (4, 19551945), (5, 15641556), (6, 13034630), (7, 11172540), (10, 7820778), (12, 6517315), (14, 5586270), (15, 5213852), (20, 3910389), (21, 3724180), (28, 2793135), (29, 2696820), (30, 2606926), (35, 2234508), (42, 1862090), (58, 1348410), (60, 1303463), (70, 1117254), (84, 931045), (87, 898940), (105, 744836), (116, 674205), (140, 558627), (145, 539364), (174, 449470), (203, 385260), (210, 372418), (290, 269682), (348, 224735), (406, 192630), (420, 186209), (435, 179788), (580, 134841), (609, 128420), (812, 96315), (870, 89894), (1015, 77052), (1218, 64210), (1740, 44947), (2030, 38526), (2436, 32105), (3045, 25684), (4060, 19263), (6090, 12842), (6421, 12180)]