201969880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{721321}}^1$

素因数の和:721339

約数の個数: 32

約数和(自身を含む): 519351840

約数和(自身を除く): 317381960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 721321, 1442642, 2885284, 3606605, 5049247, 5770568, 7213210, 10098494, 14426420, 20196988, 25246235, 28852840, 40393976, 50492470, 100984940, 201969880]

約数ペア:

[(1, 201969880), (2, 100984940), (4, 50492470), (5, 40393976), (7, 28852840), (8, 25246235), (10, 20196988), (14, 14426420), (20, 10098494), (28, 7213210), (35, 5770568), (40, 5049247), (56, 3606605), (70, 2885284), (140, 1442642), (280, 721321)]