8156820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19421}}^1$

素因数の和:19440

約数の個数: 48

約数和(自身を含む): 26103168

約数和(自身を除く): 17946348

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 19421, 38842, 58263, 77684, 97105, 116526, 135947, 194210, 233052, 271894, 291315, 388420, 407841, 543788, 582630, 679735, 815682, 1165260, 1359470, 1631364, 2039205, 2718940, 4078410, 8156820]

約数ペア:

[(1, 8156820), (2, 4078410), (3, 2718940), (4, 2039205), (5, 1631364), (6, 1359470), (7, 1165260), (10, 815682), (12, 679735), (14, 582630), (15, 543788), (20, 407841), (21, 388420), (28, 291315), (30, 271894), (35, 233052), (42, 194210), (60, 135947), (70, 116526), (84, 97105), (105, 77684), (140, 58263), (210, 38842), (420, 19421)]