19798520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70709}}^1$

素因数の和:70727

約数の個数: 32

約数和(自身を含む): 50911200

約数和(自身を除く): 31112680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70709, 141418, 282836, 353545, 494963, 565672, 707090, 989926, 1414180, 1979852, 2474815, 2828360, 3959704, 4949630, 9899260, 19798520]

約数ペア:

[(1, 19798520), (2, 9899260), (4, 4949630), (5, 3959704), (7, 2828360), (8, 2474815), (10, 1979852), (14, 1414180), (20, 989926), (28, 707090), (35, 565672), (40, 494963), (56, 353545), (70, 282836), (140, 141418), (280, 70709)]