81909030

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{390043}}^1$

素因数の和:390060

約数の個数: 32

約数和(自身を含む): 224665344

約数和(自身を除く): 142756314

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 390043, 780086, 1170129, 1950215, 2340258, 2730301, 3900430, 5460602, 5850645, 8190903, 11701290, 13651505, 16381806, 27303010, 40954515, 81909030]

約数ペア:

[(1, 81909030), (2, 40954515), (3, 27303010), (5, 16381806), (6, 13651505), (7, 11701290), (10, 8190903), (14, 5850645), (15, 5460602), (21, 3900430), (30, 2730301), (35, 2340258), (42, 1950215), (70, 1170129), (105, 780086), (210, 390043)]