19638640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{35069}}^1$

素因数の和:35089

約数の個数: 40

約数和(自身を含む): 52184160

約数和(自身を除く): 32545520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 35069, 70138, 140276, 175345, 245483, 280552, 350690, 490966, 561104, 701380, 981932, 1227415, 1402760, 1963864, 2454830, 2805520, 3927728, 4909660, 9819320, 19638640]

約数ペア:

[(1, 19638640), (2, 9819320), (4, 4909660), (5, 3927728), (7, 2805520), (8, 2454830), (10, 1963864), (14, 1402760), (16, 1227415), (20, 981932), (28, 701380), (35, 561104), (40, 490966), (56, 350690), (70, 280552), (80, 245483), (112, 175345), (140, 140276), (280, 70138), (560, 35069)]