81411890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37517}}^1$

素因数の和:37562

約数の個数: 32

約数和(自身を含む): 172882944

約数和(自身を除く): 91471054

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 37517, 75034, 187585, 262619, 375170, 525238, 1163027, 1313095, 2326054, 2626190, 5815135, 8141189, 11630270, 16282378, 40705945, 81411890]

約数ペア:

[(1, 81411890), (2, 40705945), (5, 16282378), (7, 11630270), (10, 8141189), (14, 5815135), (31, 2626190), (35, 2326054), (62, 1313095), (70, 1163027), (155, 525238), (217, 375170), (310, 262619), (434, 187585), (1085, 75034), (2170, 37517)]