81799980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1363333}}^1$

素因数の和:1363345

約数の個数: 24

約数和(自身を含む): 229040112

約数和(自身を除く): 147240132

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1363333, 2726666, 4089999, 5453332, 6816665, 8179998, 13633330, 16359996, 20449995, 27266660, 40899990, 81799980]

約数ペア:

[(1, 81799980), (2, 40899990), (3, 27266660), (4, 20449995), (5, 16359996), (6, 13633330), (10, 8179998), (12, 6816665), (15, 5453332), (20, 4089999), (30, 2726666), (60, 1363333)]