72399990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{185641}}^1$

素因数の和:185664

約数の個数: 32

約数和(自身を含む): 187127136

約数和(自身を除く): 114727146

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 185641, 371282, 556923, 928205, 1113846, 1856410, 2413333, 2784615, 4826666, 5569230, 7239999, 12066665, 14479998, 24133330, 36199995, 72399990]

約数ペア:

[(1, 72399990), (2, 36199995), (3, 24133330), (5, 14479998), (6, 12066665), (10, 7239999), (13, 5569230), (15, 4826666), (26, 2784615), (30, 2413333), (39, 1856410), (65, 1113846), (78, 928205), (130, 556923), (195, 371282), (390, 185641)]