20180875975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1069}}^1\times {\mathrm{2003}}^1$

素因数の和:3124

約数の個数: 48

約数和(自身を含む): 27918525600

約数和(自身を除く): 7737649625

約数列:

[1, 5, 13, 25, 29, 65, 145, 325, 377, 725, 1069, 1885, 2003, 5345, 9425, 10015, 13897, 26039, 26725, 31001, 50075, 58087, 69485, 130195, 155005, 290435, 347425, 403013, 650975, 755131, 775025, 1452175, 2015065, 2141207, 3775655, 10075325, 10706035, 18878275, 27835691, 53530175, 62095003, 139178455, 310475015, 695892275, 807235039, 1552375075, 4036175195, 20180875975]

約数ペア:

[(1, 20180875975), (5, 4036175195), (13, 1552375075), (25, 807235039), (29, 695892275), (65, 310475015), (145, 139178455), (325, 62095003), (377, 53530175), (725, 27835691), (1069, 18878275), (1885, 10706035), (2003, 10075325), (5345, 3775655), (9425, 2141207), (10015, 2015065), (13897, 1452175), (26039, 775025), (26725, 755131), (31001, 650975), (50075, 403013), (58087, 347425), (69485, 290435), (130195, 155005)]