199904445

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20101}}^1$

素因数の和:20142

約数の個数: 48

約数和(自身を含む): 395124912

約数和(自身を除く): 195220467

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 585, 663, 765, 1105, 1989, 3315, 9945, 20101, 60303, 100505, 180909, 261313, 301515, 341717, 783939, 904545, 1025151, 1306565, 1708585, 2351817, 3075453, 3919695, 4442321, 5125755, 11759085, 13326963, 15377265, 22211605, 39980889, 66634815, 199904445]

約数ペア:

[(1, 199904445), (3, 66634815), (5, 39980889), (9, 22211605), (13, 15377265), (15, 13326963), (17, 11759085), (39, 5125755), (45, 4442321), (51, 3919695), (65, 3075453), (85, 2351817), (117, 1708585), (153, 1306565), (195, 1025151), (221, 904545), (255, 783939), (585, 341717), (663, 301515), (765, 261313), (1105, 180909), (1989, 100505), (3315, 60303), (9945, 20101)]