205519912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{3793}}^1$

素因数の和:4333

約数の個数: 32

約数和(自身を含む): 415898280

約数和(自身を除く): 210378368

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 521, 1042, 2084, 3793, 4168, 6773, 7586, 13546, 15172, 27092, 30344, 49309, 54184, 98618, 197236, 394472, 1976153, 3952306, 7904612, 15809224, 25689989, 51379978, 102759956, 205519912]

約数ペア:

[(1, 205519912), (2, 102759956), (4, 51379978), (8, 25689989), (13, 15809224), (26, 7904612), (52, 3952306), (104, 1976153), (521, 394472), (1042, 197236), (2084, 98618), (3793, 54184), (4168, 49309), (6773, 30344), (7586, 27092), (13546, 15172)]