90089008

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{563}}^1$

素因数の和:781

約数の個数: 40

約数和(自身を含む): 178546608

約数和(自身を除く): 88457600

約数列:

[1, 2, 4, 8, 16, 73, 137, 146, 274, 292, 548, 563, 584, 1096, 1126, 1168, 2192, 2252, 4504, 9008, 10001, 20002, 40004, 41099, 77131, 80008, 82198, 154262, 160016, 164396, 308524, 328792, 617048, 657584, 1234096, 5630563, 11261126, 22522252, 45044504, 90089008]

約数ペア:

[(1, 90089008), (2, 45044504), (4, 22522252), (8, 11261126), (16, 5630563), (73, 1234096), (137, 657584), (146, 617048), (274, 328792), (292, 308524), (548, 164396), (563, 160016), (584, 154262), (1096, 82198), (1126, 80008), (1168, 77131), (2192, 41099), (2252, 40004), (4504, 20002), (9008, 10001)]