19460840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9929}}^1$

素因数の和:9954

約数の個数: 48

約数和(自身を含む): 50940900

約数和(自身を除く): 31480060

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 9929, 19858, 39716, 49645, 69503, 79432, 99290, 139006, 198580, 278012, 347515, 397160, 486521, 556024, 695030, 973042, 1390060, 1946084, 2432605, 2780120, 3892168, 4865210, 9730420, 19460840]

約数ペア:

[(1, 19460840), (2, 9730420), (4, 4865210), (5, 3892168), (7, 2780120), (8, 2432605), (10, 1946084), (14, 1390060), (20, 973042), (28, 695030), (35, 556024), (40, 486521), (49, 397160), (56, 347515), (70, 278012), (98, 198580), (140, 139006), (196, 99290), (245, 79432), (280, 69503), (392, 49645), (490, 39716), (980, 19858), (1960, 9929)]