19377260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2269}}^1$

素因数の和:2346

約数の個数: 48

約数和(自身を含む): 47288640

約数和(自身を除く): 27911380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 2269, 4270, 4538, 8540, 9076, 11345, 15883, 22690, 31766, 45380, 63532, 79415, 138409, 158830, 276818, 317660, 553636, 692045, 968863, 1384090, 1937726, 2768180, 3875452, 4844315, 9688630, 19377260]

約数ペア:

[(1, 19377260), (2, 9688630), (4, 4844315), (5, 3875452), (7, 2768180), (10, 1937726), (14, 1384090), (20, 968863), (28, 692045), (35, 553636), (61, 317660), (70, 276818), (122, 158830), (140, 138409), (244, 79415), (305, 63532), (427, 45380), (610, 31766), (854, 22690), (1220, 15883), (1708, 11345), (2135, 9076), (2269, 8540), (4270, 4538)]