56821940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{405871}}^1$

素因数の和:405887

約数の個数: 24

約数和(自身を含む): 136372992

約数和(自身を除く): 79551052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 405871, 811742, 1623484, 2029355, 2841097, 4058710, 5682194, 8117420, 11364388, 14205485, 28410970, 56821940]

約数ペア:

[(1, 56821940), (2, 28410970), (4, 14205485), (5, 11364388), (7, 8117420), (10, 5682194), (14, 4058710), (20, 2841097), (28, 2029355), (35, 1623484), (70, 811742), (140, 405871)]