20789410

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{197}}^1$

素因数の和:438

約数の個数: 32

約数和(自身を含む): 38448432

約数和(自身を除く): 17659022

約数列:

[1, 2, 5, 10, 61, 122, 173, 197, 305, 346, 394, 610, 865, 985, 1730, 1970, 10553, 12017, 21106, 24034, 34081, 52765, 60085, 68162, 105530, 120170, 170405, 340810, 2078941, 4157882, 10394705, 20789410]

約数ペア:

[(1, 20789410), (2, 10394705), (5, 4157882), (10, 2078941), (61, 340810), (122, 170405), (173, 120170), (197, 105530), (305, 68162), (346, 60085), (394, 52765), (610, 34081), (865, 24034), (985, 21106), (1730, 12017), (1970, 10553)]