161457890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{9851}}^1$

素因数の和:10018

約数の個数: 32

約数和(自身を含む): 319204800

約数和(自身を除く): 157746910

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 149, 298, 745, 1490, 1639, 3278, 8195, 9851, 16390, 19702, 49255, 98510, 108361, 216722, 541805, 1083610, 1467799, 2935598, 7338995, 14677990, 16145789, 32291578, 80728945, 161457890]

約数ペア:

[(1, 161457890), (2, 80728945), (5, 32291578), (10, 16145789), (11, 14677990), (22, 7338995), (55, 2935598), (110, 1467799), (149, 1083610), (298, 541805), (745, 216722), (1490, 108361), (1639, 98510), (3278, 49255), (8195, 19702), (9851, 16390)]