1999619604

素因数分解:

$2^2\times 3^2\times {\mathrm{89}}^1\times {\mathrm{281}}^1\times {\mathrm{2221}}^1$

素因数の和:2601

約数の個数: 72

約数和(自身を含む): 5131886760

約数和(自身を除く): 3132267156

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 89, 178, 267, 281, 356, 534, 562, 801, 843, 1068, 1124, 1602, 1686, 2221, 2529, 3204, 3372, 4442, 5058, 6663, 8884, 10116, 13326, 19989, 25009, 26652, 39978, 50018, 75027, 79956, 100036, 150054, 197669, 225081, 300108, 395338, 450162, 593007, 624101, 790676, 900324, 1186014, 1248202, 1779021, 1872303, 2372028, 2496404, 3558042, 3744606, 5616909, 7116084, 7489212, 11233818, 22467636, 55544989, 111089978, 166634967, 222179956, 333269934, 499904901, 666539868, 999809802, 1999619604]

約数ペア:

[(1, 1999619604), (2, 999809802), (3, 666539868), (4, 499904901), (6, 333269934), (9, 222179956), (12, 166634967), (18, 111089978), (36, 55544989), (89, 22467636), (178, 11233818), (267, 7489212), (281, 7116084), (356, 5616909), (534, 3744606), (562, 3558042), (801, 2496404), (843, 2372028), (1068, 1872303), (1124, 1779021), (1602, 1248202), (1686, 1186014), (2221, 900324), (2529, 790676), (3204, 624101), (3372, 593007), (4442, 450162), (5058, 395338), (6663, 300108), (8884, 225081), (10116, 197669), (13326, 150054), (19989, 100036), (25009, 79956), (26652, 75027), (39978, 50018)]