161869540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{165173}}^1$

素因数の和:165196

約数の個数: 36

約数和(自身を含む): 395426556

約数和(自身を除く): 233557016

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 165173, 330346, 660692, 825865, 1156211, 1651730, 2312422, 3303460, 4624844, 5781055, 8093477, 11562110, 16186954, 23124220, 32373908, 40467385, 80934770, 161869540]

約数ペア:

[(1, 161869540), (2, 80934770), (4, 40467385), (5, 32373908), (7, 23124220), (10, 16186954), (14, 11562110), (20, 8093477), (28, 5781055), (35, 4624844), (49, 3303460), (70, 2312422), (98, 1651730), (140, 1156211), (196, 825865), (245, 660692), (490, 330346), (980, 165173)]