20909879905

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{3307}}^1$

素因数の和:3494

約数の個数: 48

約数和(自身を含む): 27586497024

約数和(自身を除く): 6676617119

約数列:

[1, 5, 19, 31, 95, 113, 155, 361, 565, 589, 1805, 2147, 2945, 3307, 3503, 10735, 11191, 16535, 17515, 40793, 55955, 62833, 66557, 102517, 203965, 314165, 332785, 373691, 512585, 1193827, 1264583, 1868455, 1947823, 5969135, 6322915, 7100129, 9739115, 11584421, 35500645, 37008637, 57922105, 134902451, 185043185, 220103999, 674512255, 1100519995, 4181975981, 20909879905]

約数ペア:

[(1, 20909879905), (5, 4181975981), (19, 1100519995), (31, 674512255), (95, 220103999), (113, 185043185), (155, 134902451), (361, 57922105), (565, 37008637), (589, 35500645), (1805, 11584421), (2147, 9739115), (2945, 7100129), (3307, 6322915), (3503, 5969135), (10735, 1947823), (11191, 1868455), (16535, 1264583), (17515, 1193827), (40793, 512585), (55955, 373691), (62833, 332785), (66557, 314165), (102517, 203965)]