281244990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{721141}}^1$

素因数の和:721164

約数の個数: 32

約数和(自身を含む): 726911136

約数和(自身を除く): 445666146

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 721141, 1442282, 2163423, 3605705, 4326846, 7211410, 9374833, 10817115, 18749666, 21634230, 28124499, 46874165, 56248998, 93748330, 140622495, 281244990]

約数ペア:

[(1, 281244990), (2, 140622495), (3, 93748330), (5, 56248998), (6, 46874165), (10, 28124499), (13, 21634230), (15, 18749666), (26, 10817115), (30, 9374833), (39, 7211410), (65, 4326846), (78, 3605705), (130, 2163423), (195, 1442282), (390, 721141)]