20153420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{143953}}^1$

素因数の和:143969

約数の個数: 24

約数和(自身を含む): 48368544

約数和(自身を除く): 28215124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 143953, 287906, 575812, 719765, 1007671, 1439530, 2015342, 2879060, 4030684, 5038355, 10076710, 20153420]

約数ペア:

[(1, 20153420), (2, 10076710), (4, 5038355), (5, 4030684), (7, 2879060), (10, 2015342), (14, 1439530), (20, 1007671), (28, 719765), (35, 575812), (70, 287906), (140, 143953)]