129381890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{2729}}^1$

素因数の和:3178

約数の個数: 32

約数和(自身を含む): 254741760

約数和(自身を除く): 125359870

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 431, 862, 2155, 2729, 4310, 4741, 5458, 9482, 13645, 23705, 27290, 30019, 47410, 60038, 150095, 300190, 1176199, 2352398, 5880995, 11761990, 12938189, 25876378, 64690945, 129381890]

約数ペア:

[(1, 129381890), (2, 64690945), (5, 25876378), (10, 12938189), (11, 11761990), (22, 5880995), (55, 2352398), (110, 1176199), (431, 300190), (862, 150095), (2155, 60038), (2729, 47410), (4310, 30019), (4741, 27290), (5458, 23705), (9482, 13645)]